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Finding the Fourth Proportional to 462,691.08, 638,515.40 and 269,145.23

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Solution

The fourth proportional to 462,691.08, 638,515.40 and 269,145.23 is: 371,421.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,691.08 : 638,515.40 = 269,145.23 : x
  2. Step 2: Convert to fraction form
    462,691.08/638,515.40 = 269,145.23/x
  3. Step 3: Cross multiply
    462,691.08x = 638,515.40 × 269,145.23
  4. Step 4: Simplify right side
    462,691.08x = 171,853,372,845.82
  5. Step 5: Solve for x
    x = 171,853,372,845.82/462,691.08
  6. Step 6: Final answer
    x = 371,421.41

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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.