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Finding the Fourth Proportional to 421,158.96, 581,227.48 and 237,442.88

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Solution

The fourth proportional to 421,158.96, 581,227.48 and 237,442.88 is: 327,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,158.96 : 581,227.48 = 237,442.88 : x
  2. Step 2: Convert to fraction form
    421,158.96/581,227.48 = 237,442.88/x
  3. Step 3: Cross multiply
    421,158.96x = 581,227.48 × 237,442.88
  4. Step 4: Simplify right side
    421,158.96x = 138,008,326,786.34
  5. Step 5: Solve for x
    x = 138,008,326,786.34/421,158.96
  6. Step 6: Final answer
    x = 327,687.03

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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.