Home / 287,182.29-430,773.50-129,226.20

Finding the Fourth Proportional to 287,182.29, 430,773.50 and 129,226.20

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Solution

The fourth proportional to 287,182.29, 430,773.50 and 129,226.20 is: 193,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,182.29 : 430,773.50 = 129,226.20 : x
  2. Step 2: Convert to fraction form
    287,182.29/430,773.50 = 129,226.20/x
  3. Step 3: Cross multiply
    287,182.29x = 430,773.50 × 129,226.20
  4. Step 4: Simplify right side
    287,182.29x = 55,667,221,819.57
  5. Step 5: Solve for x
    x = 55,667,221,819.57/287,182.29
  6. Step 6: Final answer
    x = 193,839.33

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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.