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Finding the Fourth Proportional to 250,390.48, 345,535.92 and 135,666.88

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Solution

The fourth proportional to 250,390.48, 345,535.92 and 135,666.88 is: 187,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,390.48 : 345,535.92 = 135,666.88 : x
  2. Step 2: Convert to fraction form
    250,390.48/345,535.92 = 135,666.88/x
  3. Step 3: Cross multiply
    250,390.48x = 345,535.92 × 135,666.88
  4. Step 4: Simplify right side
    250,390.48x = 46,877,780,194.33
  5. Step 5: Solve for x
    x = 46,877,780,194.33/250,390.48
  6. Step 6: Final answer
    x = 187,218.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.