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Finding the Fourth Proportional to 283,212.80, 424,819.20 and 269,434.70

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Solution

The fourth proportional to 283,212.80, 424,819.20 and 269,434.70 is: 404,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,212.80 : 424,819.20 = 269,434.70 : x
  2. Step 2: Convert to fraction form
    283,212.80/424,819.20 = 269,434.70/x
  3. Step 3: Cross multiply
    283,212.80x = 424,819.20 × 269,434.70
  4. Step 4: Simplify right side
    283,212.80x = 114,461,033,706.24
  5. Step 5: Solve for x
    x = 114,461,033,706.24/283,212.80
  6. Step 6: Final answer
    x = 404,152.05

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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.