Home / 253,447.90-349,757.19-137,161.15

Finding the Fourth Proportional to 253,447.90, 349,757.19 and 137,161.15

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Solution

The fourth proportional to 253,447.90, 349,757.19 and 137,161.15 is: 189,281.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,447.90 : 349,757.19 = 137,161.15 : x
  2. Step 2: Convert to fraction form
    253,447.90/349,757.19 = 137,161.15/x
  3. Step 3: Cross multiply
    253,447.90x = 349,757.19 × 137,161.15
  4. Step 4: Simplify right side
    253,447.90x = 47,973,098,401.17
  5. Step 5: Solve for x
    x = 47,973,098,401.17/253,447.90
  6. Step 6: Final answer
    x = 189,281.89

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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.