Home / 316,456.20-474,686.28-129,467.70

Finding the Fourth Proportional to 316,456.20, 474,686.28 and 129,467.70

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Solution

The fourth proportional to 316,456.20, 474,686.28 and 129,467.70 is: 194,202.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,456.20 : 474,686.28 = 129,467.70 : x
  2. Step 2: Convert to fraction form
    316,456.20/474,686.28 = 129,467.70/x
  3. Step 3: Cross multiply
    316,456.20x = 474,686.28 × 129,467.70
  4. Step 4: Simplify right side
    316,456.20x = 61,456,540,893.16
  5. Step 5: Solve for x
    x = 61,456,540,893.16/316,456.20
  6. Step 6: Final answer
    x = 194,202.36

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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.