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Finding the Fourth Proportional to 283,046.40, 424,521.94 and 80,628.29

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Solution

The fourth proportional to 283,046.40, 424,521.94 and 80,628.29 is: 120,928.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,046.40 : 424,521.94 = 80,628.29 : x
  2. Step 2: Convert to fraction form
    283,046.40/424,521.94 = 80,628.29/x
  3. Step 3: Cross multiply
    283,046.40x = 424,521.94 × 80,628.29
  4. Step 4: Simplify right side
    283,046.40x = 34,228,478,089.68
  5. Step 5: Solve for x
    x = 34,228,478,089.68/283,046.40
  6. Step 6: Final answer
    x = 120,928.86

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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.