Home / 314,720.20-472,277.13-127,731.70

Finding the Fourth Proportional to 314,720.20, 472,277.13 and 127,731.70

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Solution

The fourth proportional to 314,720.20, 472,277.13 and 127,731.70 is: 191,677.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,720.20 : 472,277.13 = 127,731.70 : x
  2. Step 2: Convert to fraction form
    314,720.20/472,277.13 = 127,731.70/x
  3. Step 3: Cross multiply
    314,720.20x = 472,277.13 × 127,731.70
  4. Step 4: Simplify right side
    314,720.20x = 60,324,760,686.02
  5. Step 5: Solve for x
    x = 60,324,760,686.02/314,720.20
  6. Step 6: Final answer
    x = 191,677.44

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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.