Home / 347,822.80-521,734.20-137,352.40

Finding the Fourth Proportional to 347,822.80, 521,734.20 and 137,352.40

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Solution

The fourth proportional to 347,822.80, 521,734.20 and 137,352.40 is: 206,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,822.80 : 521,734.20 = 137,352.40 : x
  2. Step 2: Convert to fraction form
    347,822.80/521,734.20 = 137,352.40/x
  3. Step 3: Cross multiply
    347,822.80x = 521,734.20 × 137,352.40
  4. Step 4: Simplify right side
    347,822.80x = 71,661,444,532.08
  5. Step 5: Solve for x
    x = 71,661,444,532.08/347,822.80
  6. Step 6: Final answer
    x = 206,028.60

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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.