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Finding the Fourth Proportional to 339,368, 508,924 and 272,644.16

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Solution

The fourth proportional to 339,368, 508,924 and 272,644.16 is: 408,863.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,368 : 508,924 = 272,644.16 : x
  2. Step 2: Convert to fraction form
    339,368/508,924 = 272,644.16/x
  3. Step 3: Cross multiply
    339,368x = 508,924 × 272,644.16
  4. Step 4: Simplify right side
    339,368x = 138,755,156,483.84
  5. Step 5: Solve for x
    x = 138,755,156,483.84/339,368
  6. Step 6: Final answer
    x = 408,863.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.