Home / 385,518.50-578,316.48-132,765.69

Finding the Fourth Proportional to 385,518.50, 578,316.48 and 132,765.69

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Solution

The fourth proportional to 385,518.50, 578,316.48 and 132,765.69 is: 199,161.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,518.50 : 578,316.48 = 132,765.69 : x
  2. Step 2: Convert to fraction form
    385,518.50/578,316.48 = 132,765.69/x
  3. Step 3: Cross multiply
    385,518.50x = 578,316.48 × 132,765.69
  4. Step 4: Simplify right side
    385,518.50x = 76,780,586,505.57
  5. Step 5: Solve for x
    x = 76,780,586,505.57/385,518.50
  6. Step 6: Final answer
    x = 199,161.87

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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.