Home / 438,346.80-657,520.20-202,150.80

Finding the Fourth Proportional to 438,346.80, 657,520.20 and 202,150.80

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Solution

The fourth proportional to 438,346.80, 657,520.20 and 202,150.80 is: 303,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,346.80 : 657,520.20 = 202,150.80 : x
  2. Step 2: Convert to fraction form
    438,346.80/657,520.20 = 202,150.80/x
  3. Step 3: Cross multiply
    438,346.80x = 657,520.20 × 202,150.80
  4. Step 4: Simplify right side
    438,346.80x = 132,918,234,446.16
  5. Step 5: Solve for x
    x = 132,918,234,446.16/438,346.80
  6. Step 6: Final answer
    x = 303,226.20

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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.