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Finding the Fourth Proportional to 283,349, 425,079.59 and 80,946.85

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Solution

The fourth proportional to 283,349, 425,079.59 and 80,946.85 is: 121,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,349 : 425,079.59 = 80,946.85 : x
  2. Step 2: Convert to fraction form
    283,349/425,079.59 = 80,946.85/x
  3. Step 3: Cross multiply
    283,349x = 425,079.59 × 80,946.85
  4. Step 4: Simplify right side
    283,349x = 34,408,853,809.79
  5. Step 5: Solve for x
    x = 34,408,853,809.79/283,349
  6. Step 6: Final answer
    x = 121,436.30

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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.