Home / 252,253.12-378,448.80-132,318.04

Finding the Fourth Proportional to 252,253.12, 378,448.80 and 132,318.04

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Solution

The fourth proportional to 252,253.12, 378,448.80 and 132,318.04 is: 198,513.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,253.12 : 378,448.80 = 132,318.04 : x
  2. Step 2: Convert to fraction form
    252,253.12/378,448.80 = 132,318.04/x
  3. Step 3: Cross multiply
    252,253.12x = 378,448.80 × 132,318.04
  4. Step 4: Simplify right side
    252,253.12x = 50,075,603,456.35
  5. Step 5: Solve for x
    x = 50,075,603,456.35/252,253.12
  6. Step 6: Final answer
    x = 198,513.32

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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.