Home / 252,175.12-378,263.90-74,685.50

Finding the Fourth Proportional to 252,175.12, 378,263.90 and 74,685.50

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Solution

The fourth proportional to 252,175.12, 378,263.90 and 74,685.50 is: 112,028.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,175.12 : 378,263.90 = 74,685.50 : x
  2. Step 2: Convert to fraction form
    252,175.12/378,263.90 = 74,685.50/x
  3. Step 3: Cross multiply
    252,175.12x = 378,263.90 × 74,685.50
  4. Step 4: Simplify right side
    252,175.12x = 28,250,828,503.45
  5. Step 5: Solve for x
    x = 28,250,828,503.45/252,175.12
  6. Step 6: Final answer
    x = 112,028.61

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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.