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Finding the Fourth Proportional to 515,432.88, 773,149.32 and 160,482.78

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Solution

The fourth proportional to 515,432.88, 773,149.32 and 160,482.78 is: 240,724.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,432.88 : 773,149.32 = 160,482.78 : x
  2. Step 2: Convert to fraction form
    515,432.88/773,149.32 = 160,482.78/x
  3. Step 3: Cross multiply
    515,432.88x = 773,149.32 × 160,482.78
  4. Step 4: Simplify right side
    515,432.88x = 124,077,152,228.71
  5. Step 5: Solve for x
    x = 124,077,152,228.71/515,432.88
  6. Step 6: Final answer
    x = 240,724.17

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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.