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Finding the Fourth Proportional to 438,435, 605,040.84 and 237,231

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Solution

The fourth proportional to 438,435, 605,040.84 and 237,231 is: 327,379.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,435 : 605,040.84 = 237,231 : x
  2. Step 2: Convert to fraction form
    438,435/605,040.84 = 237,231/x
  3. Step 3: Cross multiply
    438,435x = 605,040.84 × 237,231
  4. Step 4: Simplify right side
    438,435x = 143,534,443,514.04
  5. Step 5: Solve for x
    x = 143,534,443,514.04/438,435
  6. Step 6: Final answer
    x = 327,379.07

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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.