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Finding the Fourth Proportional to 438,581.20, 605,242 and 237,377.20

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Solution

The fourth proportional to 438,581.20, 605,242 and 237,377.20 is: 327,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,581.20 : 605,242 = 237,377.20 : x
  2. Step 2: Convert to fraction form
    438,581.20/605,242 = 237,377.20/x
  3. Step 3: Cross multiply
    438,581.20x = 605,242 × 237,377.20
  4. Step 4: Simplify right side
    438,581.20x = 143,670,651,282.40
  5. Step 5: Solve for x
    x = 143,670,651,282.40/438,581.20
  6. Step 6: Final answer
    x = 327,580.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.