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Finding the Fourth Proportional to 311,281.40, 466,922.10 and 297,630.20

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Solution

The fourth proportional to 311,281.40, 466,922.10 and 297,630.20 is: 446,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,281.40 : 466,922.10 = 297,630.20 : x
  2. Step 2: Convert to fraction form
    311,281.40/466,922.10 = 297,630.20/x
  3. Step 3: Cross multiply
    311,281.40x = 466,922.10 × 297,630.20
  4. Step 4: Simplify right side
    311,281.40x = 138,970,118,007.42
  5. Step 5: Solve for x
    x = 138,970,118,007.42/311,281.40
  6. Step 6: Final answer
    x = 446,445.30

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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.