Home / 385,519.50-578,317.98-132,766.69

Finding the Fourth Proportional to 385,519.50, 578,317.98 and 132,766.69

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Solution

The fourth proportional to 385,519.50, 578,317.98 and 132,766.69 is: 199,163.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,519.50 : 578,317.98 = 132,766.69 : x
  2. Step 2: Convert to fraction form
    385,519.50/578,317.98 = 132,766.69/x
  3. Step 3: Cross multiply
    385,519.50x = 578,317.98 × 132,766.69
  4. Step 4: Simplify right side
    385,519.50x = 76,781,363,972.09
  5. Step 5: Solve for x
    x = 76,781,363,972.09/385,519.50
  6. Step 6: Final answer
    x = 199,163.37

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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.