Home / 316,311.40-474,467.10-129,279.16

Finding the Fourth Proportional to 316,311.40, 474,467.10 and 129,279.16

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Solution

The fourth proportional to 316,311.40, 474,467.10 and 129,279.16 is: 193,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,311.40 : 474,467.10 = 129,279.16 : x
  2. Step 2: Convert to fraction form
    316,311.40/474,467.10 = 129,279.16/x
  3. Step 3: Cross multiply
    316,311.40x = 474,467.10 × 129,279.16
  4. Step 4: Simplify right side
    316,311.40x = 61,338,708,135.64
  5. Step 5: Solve for x
    x = 61,338,708,135.64/316,311.40
  6. Step 6: Final answer
    x = 193,918.74

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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.