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Finding the Fourth Proportional to 279,253.53, 415,721.67 and 277,592.76

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Solution

The fourth proportional to 279,253.53, 415,721.67 and 277,592.76 is: 413,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,253.53 : 415,721.67 = 277,592.76 : x
  2. Step 2: Convert to fraction form
    279,253.53/415,721.67 = 277,592.76/x
  3. Step 3: Cross multiply
    279,253.53x = 415,721.67 × 277,592.76
  4. Step 4: Simplify right side
    279,253.53x = 115,401,325,767.11
  5. Step 5: Solve for x
    x = 115,401,325,767.11/279,253.53
  6. Step 6: Final answer
    x = 413,249.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.