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Finding the Fourth Proportional to 283,353.82, 424,930.68 and 83,620.78

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Solution

The fourth proportional to 283,353.82, 424,930.68 and 83,620.78 is: 125,401.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,353.82 : 424,930.68 = 83,620.78 : x
  2. Step 2: Convert to fraction form
    283,353.82/424,930.68 = 83,620.78/x
  3. Step 3: Cross multiply
    283,353.82x = 424,930.68 × 83,620.78
  4. Step 4: Simplify right side
    283,353.82x = 35,533,033,845.20
  5. Step 5: Solve for x
    x = 35,533,033,845.20/283,353.82
  6. Step 6: Final answer
    x = 125,401.64

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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.