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Finding the Fourth Proportional to 225,091.47, 337,637.20 and 91,971.60

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Solution

The fourth proportional to 225,091.47, 337,637.20 and 91,971.60 is: 137,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,091.47 : 337,637.20 = 91,971.60 : x
  2. Step 2: Convert to fraction form
    225,091.47/337,637.20 = 91,971.60/x
  3. Step 3: Cross multiply
    225,091.47x = 337,637.20 × 91,971.60
  4. Step 4: Simplify right side
    225,091.47x = 31,053,034,337.78
  5. Step 5: Solve for x
    x = 31,053,034,337.78/225,091.47
  6. Step 6: Final answer
    x = 137,957.40

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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.