Home / 385,316.68-531,761.60-215,552.04

Finding the Fourth Proportional to 385,316.68, 531,761.60 and 215,552.04

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Solution

The fourth proportional to 385,316.68, 531,761.60 and 215,552.04 is: 297,475.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,316.68 : 531,761.60 = 215,552.04 : x
  2. Step 2: Convert to fraction form
    385,316.68/531,761.60 = 215,552.04/x
  3. Step 3: Cross multiply
    385,316.68x = 531,761.60 × 215,552.04
  4. Step 4: Simplify right side
    385,316.68x = 114,622,297,673.66
  5. Step 5: Solve for x
    x = 114,622,297,673.66/385,316.68
  6. Step 6: Final answer
    x = 297,475.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.