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Finding the Fourth Proportional to 438,514.64, 605,152 and 237,310.64

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Solution

The fourth proportional to 438,514.64, 605,152 and 237,310.64 is: 327,489.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,514.64 : 605,152 = 237,310.64 : x
  2. Step 2: Convert to fraction form
    438,514.64/605,152 = 237,310.64/x
  3. Step 3: Cross multiply
    438,514.64x = 605,152 × 237,310.64
  4. Step 4: Simplify right side
    438,514.64x = 143,609,008,417.28
  5. Step 5: Solve for x
    x = 143,609,008,417.28/438,514.64
  6. Step 6: Final answer
    x = 327,489.66

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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.