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Finding the Fourth Proportional to 440,877.78, 661,322.07 and 125,334.18

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Solution

The fourth proportional to 440,877.78, 661,322.07 and 125,334.18 is: 188,002.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,877.78 : 661,322.07 = 125,334.18 : x
  2. Step 2: Convert to fraction form
    440,877.78/661,322.07 = 125,334.18/x
  3. Step 3: Cross multiply
    440,877.78x = 661,322.07 × 125,334.18
  4. Step 4: Simplify right side
    440,877.78x = 82,886,259,359.35
  5. Step 5: Solve for x
    x = 82,886,259,359.35/440,877.78
  6. Step 6: Final answer
    x = 188,002.81

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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.