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Finding the Fourth Proportional to 258,550.84, 387,549.54 and 125,248.12

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Solution

The fourth proportional to 258,550.84, 387,549.54 and 125,248.12 is: 187,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,550.84 : 387,549.54 = 125,248.12 : x
  2. Step 2: Convert to fraction form
    258,550.84/387,549.54 = 125,248.12/x
  3. Step 3: Cross multiply
    258,550.84x = 387,549.54 × 125,248.12
  4. Step 4: Simplify right side
    258,550.84x = 48,539,851,291.86
  5. Step 5: Solve for x
    x = 48,539,851,291.86/258,550.84
  6. Step 6: Final answer
    x = 187,738.13

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1.5x scale

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.