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Finding the Fourth Proportional to 258,160.32, 387,339.84 and 125,030.34

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Solution

The fourth proportional to 258,160.32, 387,339.84 and 125,030.34 is: 187,593.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,160.32 : 387,339.84 = 125,030.34 : x
  2. Step 2: Convert to fraction form
    258,160.32/387,339.84 = 125,030.34/x
  3. Step 3: Cross multiply
    258,160.32x = 387,339.84 × 125,030.34
  4. Step 4: Simplify right side
    258,160.32x = 48,429,231,890.75
  5. Step 5: Solve for x
    x = 48,429,231,890.75/258,160.32
  6. Step 6: Final answer
    x = 187,593.63

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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.