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Finding the Fourth Proportional to 288,587.16, 432,938.15 and 88,899.03

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Solution

The fourth proportional to 288,587.16, 432,938.15 and 88,899.03 is: 133,366.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,587.16 : 432,938.15 = 88,899.03 : x
  2. Step 2: Convert to fraction form
    288,587.16/432,938.15 = 88,899.03/x
  3. Step 3: Cross multiply
    288,587.16x = 432,938.15 × 88,899.03
  4. Step 4: Simplify right side
    288,587.16x = 38,487,781,584.99
  5. Step 5: Solve for x
    x = 38,487,781,584.99/288,587.16
  6. Step 6: Final answer
    x = 133,366.23

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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.