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Finding the Fourth Proportional to 306,252.40, 458,082.60 and 274,889.20

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Solution

The fourth proportional to 306,252.40, 458,082.60 and 274,889.20 is: 411,170.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,252.40 : 458,082.60 = 274,889.20 : x
  2. Step 2: Convert to fraction form
    306,252.40/458,082.60 = 274,889.20/x
  3. Step 3: Cross multiply
    306,252.40x = 458,082.60 × 274,889.20
  4. Step 4: Simplify right side
    306,252.40x = 125,921,959,447.92
  5. Step 5: Solve for x
    x = 125,921,959,447.92/306,252.40
  6. Step 6: Final answer
    x = 411,170.52

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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.