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Finding the Fourth Proportional to 487,984.32, 732,084.48 and 155,560.32

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Solution

The fourth proportional to 487,984.32, 732,084.48 and 155,560.32 is: 233,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,984.32 : 732,084.48 = 155,560.32 : x
  2. Step 2: Convert to fraction form
    487,984.32/732,084.48 = 155,560.32/x
  3. Step 3: Cross multiply
    487,984.32x = 732,084.48 × 155,560.32
  4. Step 4: Simplify right side
    487,984.32x = 113,883,295,975.83
  5. Step 5: Solve for x
    x = 113,883,295,975.83/487,984.32
  6. Step 6: Final answer
    x = 233,374.91

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.