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Finding the Fourth Proportional to 283,027.10, 424,454.18 and 80,639.69

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Solution

The fourth proportional to 283,027.10, 424,454.18 and 80,639.69 is: 120,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,027.10 : 424,454.18 = 80,639.69 : x
  2. Step 2: Convert to fraction form
    283,027.10/424,454.18 = 80,639.69/x
  3. Step 3: Cross multiply
    283,027.10x = 424,454.18 × 80,639.69
  4. Step 4: Simplify right side
    283,027.10x = 34,227,850,968.93
  5. Step 5: Solve for x
    x = 34,227,850,968.93/283,027.10
  6. Step 6: Final answer
    x = 120,934.89

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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.