Home / 347,729.20-521,464.20-137,323.60

Finding the Fourth Proportional to 347,729.20, 521,464.20 and 137,323.60

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Solution

The fourth proportional to 347,729.20, 521,464.20 and 137,323.60 is: 205,934.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,729.20 : 521,464.20 = 137,323.60 : x
  2. Step 2: Convert to fraction form
    347,729.20/521,464.20 = 137,323.60/x
  3. Step 3: Cross multiply
    347,729.20x = 521,464.20 × 137,323.60
  4. Step 4: Simplify right side
    347,729.20x = 71,609,341,215.12
  5. Step 5: Solve for x
    x = 71,609,341,215.12/347,729.20
  6. Step 6: Final answer
    x = 205,934.22

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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.