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Finding the Fourth Proportional to 288,444.25, 432,707.37 and 88,781.28

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Solution

The fourth proportional to 288,444.25, 432,707.37 and 88,781.28 is: 133,184.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,444.25 : 432,707.37 = 88,781.28 : x
  2. Step 2: Convert to fraction form
    288,444.25/432,707.37 = 88,781.28/x
  3. Step 3: Cross multiply
    288,444.25x = 432,707.37 × 88,781.28
  4. Step 4: Simplify right side
    288,444.25x = 38,416,312,884.31
  5. Step 5: Solve for x
    x = 38,416,312,884.31/288,444.25
  6. Step 6: Final answer
    x = 133,184.53

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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.