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Finding the Fourth Proportional to 145,533.64, 218,300.52 and 65,478.12

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Solution

The fourth proportional to 145,533.64, 218,300.52 and 65,478.12 is: 98,217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,533.64 : 218,300.52 = 65,478.12 : x
  2. Step 2: Convert to fraction form
    145,533.64/218,300.52 = 65,478.12/x
  3. Step 3: Cross multiply
    145,533.64x = 218,300.52 × 65,478.12
  4. Step 4: Simplify right side
    145,533.64x = 14,293,907,644.62
  5. Step 5: Solve for x
    x = 14,293,907,644.62/145,533.64
  6. Step 6: Final answer
    x = 98,217.21

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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.