Home / 316,393.20-474,314.28-129,285.36

Finding the Fourth Proportional to 316,393.20, 474,314.28 and 129,285.36

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Solution

The fourth proportional to 316,393.20, 474,314.28 and 129,285.36 is: 193,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,393.20 : 474,314.28 = 129,285.36 : x
  2. Step 2: Convert to fraction form
    316,393.20/474,314.28 = 129,285.36/x
  3. Step 3: Cross multiply
    316,393.20x = 474,314.28 × 129,285.36
  4. Step 4: Simplify right side
    316,393.20x = 61,321,892,442.94
  5. Step 5: Solve for x
    x = 61,321,892,442.94/316,393.20
  6. Step 6: Final answer
    x = 193,815.46

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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.