Home / 316,394.20-474,315.78-129,286.36

Finding the Fourth Proportional to 316,394.20, 474,315.78 and 129,286.36

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Solution

The fourth proportional to 316,394.20, 474,315.78 and 129,286.36 is: 193,816.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,394.20 : 474,315.78 = 129,286.36 : x
  2. Step 2: Convert to fraction form
    316,394.20/474,315.78 = 129,286.36/x
  3. Step 3: Cross multiply
    316,394.20x = 474,315.78 × 129,286.36
  4. Step 4: Simplify right side
    316,394.20x = 61,322,560,686.76
  5. Step 5: Solve for x
    x = 61,322,560,686.76/316,394.20
  6. Step 6: Final answer
    x = 193,816.96

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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.