Home / 374,280.30-561,642.78-137,789.04

Finding the Fourth Proportional to 374,280.30, 561,642.78 and 137,789.04

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Solution

The fourth proportional to 374,280.30, 561,642.78 and 137,789.04 is: 206,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,280.30 : 561,642.78 = 137,789.04 : x
  2. Step 2: Convert to fraction form
    374,280.30/561,642.78 = 137,789.04/x
  3. Step 3: Cross multiply
    374,280.30x = 561,642.78 × 137,789.04
  4. Step 4: Simplify right side
    374,280.30x = 77,388,219,479.13
  5. Step 5: Solve for x
    x = 77,388,219,479.13/374,280.30
  6. Step 6: Final answer
    x = 206,765.41

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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.