Home / 390,344.45-538,645.67-237,361.52

Finding the Fourth Proportional to 390,344.45, 538,645.67 and 237,361.52

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Solution

The fourth proportional to 390,344.45, 538,645.67 and 237,361.52 is: 327,540.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,344.45 : 538,645.67 = 237,361.52 : x
  2. Step 2: Convert to fraction form
    390,344.45/538,645.67 = 237,361.52/x
  3. Step 3: Cross multiply
    390,344.45x = 538,645.67 × 237,361.52
  4. Step 4: Simplify right side
    390,344.45x = 127,853,754,972.62
  5. Step 5: Solve for x
    x = 127,853,754,972.62/390,344.45
  6. Step 6: Final answer
    x = 327,540.86

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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.