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Finding the Fourth Proportional to 311,707.20, 467,560.80 and 299,265.60

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Solution

The fourth proportional to 311,707.20, 467,560.80 and 299,265.60 is: 448,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,707.20 : 467,560.80 = 299,265.60 : x
  2. Step 2: Convert to fraction form
    311,707.20/467,560.80 = 299,265.60/x
  3. Step 3: Cross multiply
    311,707.20x = 467,560.80 × 299,265.60
  4. Step 4: Simplify right side
    311,707.20x = 139,924,863,348.48
  5. Step 5: Solve for x
    x = 139,924,863,348.48/311,707.20
  6. Step 6: Final answer
    x = 448,898.40

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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.