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Finding the Fourth Proportional to 258,797.66, 387,635.06 and 125,398.14

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Solution

The fourth proportional to 258,797.66, 387,635.06 and 125,398.14 is: 187,825.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,797.66 : 387,635.06 = 125,398.14 : x
  2. Step 2: Convert to fraction form
    258,797.66/387,635.06 = 125,398.14/x
  3. Step 3: Cross multiply
    258,797.66x = 387,635.06 × 125,398.14
  4. Step 4: Simplify right side
    258,797.66x = 48,608,714,895.80
  5. Step 5: Solve for x
    x = 48,608,714,895.80/258,797.66
  6. Step 6: Final answer
    x = 187,825.18

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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.