Home / 305,516.40-458,090.52-137,006.28

Finding the Fourth Proportional to 305,516.40, 458,090.52 and 137,006.28

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Solution

The fourth proportional to 305,516.40, 458,090.52 and 137,006.28 is: 205,426.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,516.40 : 458,090.52 = 137,006.28 : x
  2. Step 2: Convert to fraction form
    305,516.40/458,090.52 = 137,006.28/x
  3. Step 3: Cross multiply
    305,516.40x = 458,090.52 × 137,006.28
  4. Step 4: Simplify right side
    305,516.40x = 62,761,278,048.47
  5. Step 5: Solve for x
    x = 62,761,278,048.47/305,516.40
  6. Step 6: Final answer
    x = 205,426.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.