Home / 245,371.08-338,624.10-137,974.80

Finding the Fourth Proportional to 245,371.08, 338,624.10 and 137,974.80

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Solution

The fourth proportional to 245,371.08, 338,624.10 and 137,974.80 is: 190,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,371.08 : 338,624.10 = 137,974.80 : x
  2. Step 2: Convert to fraction form
    245,371.08/338,624.10 = 137,974.80/x
  3. Step 3: Cross multiply
    245,371.08x = 338,624.10 × 137,974.80
  4. Step 4: Simplify right side
    245,371.08x = 46,721,592,472.68
  5. Step 5: Solve for x
    x = 46,721,592,472.68/245,371.08
  6. Step 6: Final answer
    x = 190,411.98

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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.