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Finding the Fourth Proportional to 306,256.60, 458,510.10 and 274,763.80

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Solution

The fourth proportional to 306,256.60, 458,510.10 and 274,763.80 is: 411,360.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,256.60 : 458,510.10 = 274,763.80 : x
  2. Step 2: Convert to fraction form
    306,256.60/458,510.10 = 274,763.80/x
  3. Step 3: Cross multiply
    306,256.60x = 458,510.10 × 274,763.80
  4. Step 4: Simplify right side
    306,256.60x = 125,981,977,414.38
  5. Step 5: Solve for x
    x = 125,981,977,414.38/306,256.60
  6. Step 6: Final answer
    x = 411,360.86

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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.