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Finding the Fourth Proportional to 287,714.02, 431,552.92 and 88,018.54

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Solution

The fourth proportional to 287,714.02, 431,552.92 and 88,018.54 is: 132,022.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,714.02 : 431,552.92 = 88,018.54 : x
  2. Step 2: Convert to fraction form
    287,714.02/431,552.92 = 88,018.54/x
  3. Step 3: Cross multiply
    287,714.02x = 431,552.92 × 88,018.54
  4. Step 4: Simplify right side
    287,714.02x = 37,984,657,951.14
  5. Step 5: Solve for x
    x = 37,984,657,951.14/287,714.02
  6. Step 6: Final answer
    x = 132,022.27

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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.