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Finding the Fourth Proportional to 356,302.56, 491,575.48 and 203,230.76

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Solution

The fourth proportional to 356,302.56, 491,575.48 and 203,230.76 is: 280,388.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,302.56 : 491,575.48 = 203,230.76 : x
  2. Step 2: Convert to fraction form
    356,302.56/491,575.48 = 203,230.76/x
  3. Step 3: Cross multiply
    356,302.56x = 491,575.48 × 203,230.76
  4. Step 4: Simplify right side
    356,302.56x = 99,903,258,397.76
  5. Step 5: Solve for x
    x = 99,903,258,397.76/356,302.56
  6. Step 6: Final answer
    x = 280,388.83

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1.5x scale

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.