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Finding the Fourth Proportional to 438,399, 604,990.62 and 237,195

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Solution

The fourth proportional to 438,399, 604,990.62 and 237,195 is: 327,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,399 : 604,990.62 = 237,195 : x
  2. Step 2: Convert to fraction form
    438,399/604,990.62 = 237,195/x
  3. Step 3: Cross multiply
    438,399x = 604,990.62 × 237,195
  4. Step 4: Simplify right side
    438,399x = 143,500,750,110.90
  5. Step 5: Solve for x
    x = 143,500,750,110.90/438,399
  6. Step 6: Final answer
    x = 327,329.10

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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.