Home / 254,710.38-351,498.51-138,422.97

Finding the Fourth Proportional to 254,710.38, 351,498.51 and 138,422.97

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Solution

The fourth proportional to 254,710.38, 351,498.51 and 138,422.97 is: 191,022.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,710.38 : 351,498.51 = 138,422.97 : x
  2. Step 2: Convert to fraction form
    254,710.38/351,498.51 = 138,422.97/x
  3. Step 3: Cross multiply
    254,710.38x = 351,498.51 × 138,422.97
  4. Step 4: Simplify right side
    254,710.38x = 48,655,467,704.77
  5. Step 5: Solve for x
    x = 48,655,467,704.77/254,710.38
  6. Step 6: Final answer
    x = 191,022.71

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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.