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Finding the Fourth Proportional to 356,535.06, 491,956.02 and 203,503.38

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Solution

The fourth proportional to 356,535.06, 491,956.02 and 203,503.38 is: 280,799.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,535.06 : 491,956.02 = 203,503.38 : x
  2. Step 2: Convert to fraction form
    356,535.06/491,956.02 = 203,503.38/x
  3. Step 3: Cross multiply
    356,535.06x = 491,956.02 × 203,503.38
  4. Step 4: Simplify right side
    356,535.06x = 100,114,712,881.35
  5. Step 5: Solve for x
    x = 100,114,712,881.35/356,535.06
  6. Step 6: Final answer
    x = 280,799.07

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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.