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Finding the Fourth Proportional to 283,464.20, 424,613.10 and 143,301.80

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Solution

The fourth proportional to 283,464.20, 424,613.10 and 143,301.80 is: 214,657.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,464.20 : 424,613.10 = 143,301.80 : x
  2. Step 2: Convert to fraction form
    283,464.20/424,613.10 = 143,301.80/x
  3. Step 3: Cross multiply
    283,464.20x = 424,613.10 × 143,301.80
  4. Step 4: Simplify right side
    283,464.20x = 60,847,821,533.58
  5. Step 5: Solve for x
    x = 60,847,821,533.58/283,464.20
  6. Step 6: Final answer
    x = 214,657.87

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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.