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Finding the Fourth Proportional to 381,307.67, 571,959.01 and 96,995.78

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Solution

The fourth proportional to 381,307.67, 571,959.01 and 96,995.78 is: 145,493.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,307.67 : 571,959.01 = 96,995.78 : x
  2. Step 2: Convert to fraction form
    381,307.67/571,959.01 = 96,995.78/x
  3. Step 3: Cross multiply
    381,307.67x = 571,959.01 × 96,995.78
  4. Step 4: Simplify right side
    381,307.67x = 55,477,610,302.98
  5. Step 5: Solve for x
    x = 55,477,610,302.98/381,307.67
  6. Step 6: Final answer
    x = 145,493.04

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Double scale
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Similar ratio
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1.5x scale

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.