Home / 254,711.38-351,499.89-138,423.97

Finding the Fourth Proportional to 254,711.38, 351,499.89 and 138,423.97

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Solution

The fourth proportional to 254,711.38, 351,499.89 and 138,423.97 is: 191,024.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,711.38 : 351,499.89 = 138,423.97 : x
  2. Step 2: Convert to fraction form
    254,711.38/351,499.89 = 138,423.97/x
  3. Step 3: Cross multiply
    254,711.38x = 351,499.89 × 138,423.97
  4. Step 4: Simplify right side
    254,711.38x = 48,656,010,228.36
  5. Step 5: Solve for x
    x = 48,656,010,228.36/254,711.38
  6. Step 6: Final answer
    x = 191,024.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.