Home / 321,811.57-482,872.88-132,411.70

Finding the Fourth Proportional to 321,811.57, 482,872.88 and 132,411.70

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Solution

The fourth proportional to 321,811.57, 482,872.88 and 132,411.70 is: 198,681.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,811.57 : 482,872.88 = 132,411.70 : x
  2. Step 2: Convert to fraction form
    321,811.57/482,872.88 = 132,411.70/x
  3. Step 3: Cross multiply
    321,811.57x = 482,872.88 × 132,411.70
  4. Step 4: Simplify right side
    321,811.57x = 63,938,018,924.70
  5. Step 5: Solve for x
    x = 63,938,018,924.70/321,811.57
  6. Step 6: Final answer
    x = 198,681.54

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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.