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Finding the Fourth Proportional to 245,959.26, 339,434.27 and 137,063.71

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Solution

The fourth proportional to 245,959.26, 339,434.27 and 137,063.71 is: 189,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,959.26 : 339,434.27 = 137,063.71 : x
  2. Step 2: Convert to fraction form
    245,959.26/339,434.27 = 137,063.71/x
  3. Step 3: Cross multiply
    245,959.26x = 339,434.27 × 137,063.71
  4. Step 4: Simplify right side
    245,959.26x = 46,524,120,347.34
  5. Step 5: Solve for x
    x = 46,524,120,347.34/245,959.26
  6. Step 6: Final answer
    x = 189,153.77

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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.