Home / 404,318.85-606,478.28-137,990.85

Finding the Fourth Proportional to 404,318.85, 606,478.28 and 137,990.85

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Solution

The fourth proportional to 404,318.85, 606,478.28 and 137,990.85 is: 206,986.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,318.85 : 606,478.28 = 137,990.85 : x
  2. Step 2: Convert to fraction form
    404,318.85/606,478.28 = 137,990.85/x
  3. Step 3: Cross multiply
    404,318.85x = 606,478.28 × 137,990.85
  4. Step 4: Simplify right side
    404,318.85x = 83,688,452,673.78
  5. Step 5: Solve for x
    x = 83,688,452,673.78/404,318.85
  6. Step 6: Final answer
    x = 206,986.28

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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.