Home / 352,414.40-528,621.60-203,115.20

Finding the Fourth Proportional to 352,414.40, 528,621.60 and 203,115.20

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Solution

The fourth proportional to 352,414.40, 528,621.60 and 203,115.20 is: 304,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,414.40 : 528,621.60 = 203,115.20 : x
  2. Step 2: Convert to fraction form
    352,414.40/528,621.60 = 203,115.20/x
  3. Step 3: Cross multiply
    352,414.40x = 528,621.60 × 203,115.20
  4. Step 4: Simplify right side
    352,414.40x = 107,371,082,008.32
  5. Step 5: Solve for x
    x = 107,371,082,008.32/352,414.40
  6. Step 6: Final answer
    x = 304,672.80

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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.