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Finding the Fourth Proportional to 283,021.01, 424,445.11 and 80,633.64

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Solution

The fourth proportional to 283,021.01, 424,445.11 and 80,633.64 is: 120,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,021.01 : 424,445.11 = 80,633.64 : x
  2. Step 2: Convert to fraction form
    283,021.01/424,445.11 = 80,633.64/x
  3. Step 3: Cross multiply
    283,021.01x = 424,445.11 × 80,633.64
  4. Step 4: Simplify right side
    283,021.01x = 34,224,553,997.92
  5. Step 5: Solve for x
    x = 34,224,553,997.92/283,021.01
  6. Step 6: Final answer
    x = 120,925.84

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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.