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Finding the Fourth Proportional to 543,010.60, 814,188.66 and 243,437

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Solution

The fourth proportional to 543,010.60, 814,188.66 and 243,437 is: 365,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,010.60 : 814,188.66 = 243,437 : x
  2. Step 2: Convert to fraction form
    543,010.60/814,188.66 = 243,437/x
  3. Step 3: Cross multiply
    543,010.60x = 814,188.66 × 243,437
  4. Step 4: Simplify right side
    543,010.60x = 198,203,644,824.42
  5. Step 5: Solve for x
    x = 198,203,644,824.42/543,010.60
  6. Step 6: Final answer
    x = 365,008.80

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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.