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Finding the Fourth Proportional to 283,266.60, 424,899.90 and 272,380.20

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Solution

The fourth proportional to 283,266.60, 424,899.90 and 272,380.20 is: 408,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,266.60 : 424,899.90 = 272,380.20 : x
  2. Step 2: Convert to fraction form
    283,266.60/424,899.90 = 272,380.20/x
  3. Step 3: Cross multiply
    283,266.60x = 424,899.90 × 272,380.20
  4. Step 4: Simplify right side
    283,266.60x = 115,734,319,741.98
  5. Step 5: Solve for x
    x = 115,734,319,741.98/283,266.60
  6. Step 6: Final answer
    x = 408,570.30

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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.