Home / 420,167.93-629,872.27-153,742.73

Finding the Fourth Proportional to 420,167.93, 629,872.27 and 153,742.73

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Solution

The fourth proportional to 420,167.93, 629,872.27 and 153,742.73 is: 230,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,167.93 : 629,872.27 = 153,742.73 : x
  2. Step 2: Convert to fraction form
    420,167.93/629,872.27 = 153,742.73/x
  3. Step 3: Cross multiply
    420,167.93x = 629,872.27 × 153,742.73
  4. Step 4: Simplify right side
    420,167.93x = 96,838,278,807.38
  5. Step 5: Solve for x
    x = 96,838,278,807.38/420,167.93
  6. Step 6: Final answer
    x = 230,475.18

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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.