Home / 385,531.18-532,032.96-215,765.30

Finding the Fourth Proportional to 385,531.18, 532,032.96 and 215,765.30

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Solution

The fourth proportional to 385,531.18, 532,032.96 and 215,765.30 is: 297,756.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,531.18 : 532,032.96 = 215,765.30 : x
  2. Step 2: Convert to fraction form
    385,531.18/532,032.96 = 215,765.30/x
  3. Step 3: Cross multiply
    385,531.18x = 532,032.96 × 215,765.30
  4. Step 4: Simplify right side
    385,531.18x = 114,794,252,149.81
  5. Step 5: Solve for x
    x = 114,794,252,149.81/385,531.18
  6. Step 6: Final answer
    x = 297,756.08

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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.