Home / 438,435.41-657,658.24-154,134.29

Finding the Fourth Proportional to 438,435.41, 657,658.24 and 154,134.29

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Solution

The fourth proportional to 438,435.41, 657,658.24 and 154,134.29 is: 231,203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,435.41 : 657,658.24 = 154,134.29 : x
  2. Step 2: Convert to fraction form
    438,435.41/657,658.24 = 154,134.29/x
  3. Step 3: Cross multiply
    438,435.41x = 657,658.24 × 154,134.29
  4. Step 4: Simplify right side
    438,435.41x = 101,367,687,143.86
  5. Step 5: Solve for x
    x = 101,367,687,143.86/438,435.41
  6. Step 6: Final answer
    x = 231,203.24

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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.