Home / 438,940.32-658,306.80-202,135.20

Finding the Fourth Proportional to 438,940.32, 658,306.80 and 202,135.20

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Solution

The fourth proportional to 438,940.32, 658,306.80 and 202,135.20 is: 303,155.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,940.32 : 658,306.80 = 202,135.20 : x
  2. Step 2: Convert to fraction form
    438,940.32/658,306.80 = 202,135.20/x
  3. Step 3: Cross multiply
    438,940.32x = 658,306.80 × 202,135.20
  4. Step 4: Simplify right side
    438,940.32x = 133,066,976,679.36
  5. Step 5: Solve for x
    x = 133,066,976,679.36/438,940.32
  6. Step 6: Final answer
    x = 303,155.05

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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.