Home / 245,932.71-339,381.39-138,503.17

Finding the Fourth Proportional to 245,932.71, 339,381.39 and 138,503.17

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Solution

The fourth proportional to 245,932.71, 339,381.39 and 138,503.17 is: 191,131.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,932.71 : 339,381.39 = 138,503.17 : x
  2. Step 2: Convert to fraction form
    245,932.71/339,381.39 = 138,503.17/x
  3. Step 3: Cross multiply
    245,932.71x = 339,381.39 × 138,503.17
  4. Step 4: Simplify right side
    245,932.71x = 47,005,397,388.60
  5. Step 5: Solve for x
    x = 47,005,397,388.60/245,932.71
  6. Step 6: Final answer
    x = 191,131.14

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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.