Home / 252,321.51-378,555.30-74,832.78

Finding the Fourth Proportional to 252,321.51, 378,555.30 and 74,832.78

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Solution

The fourth proportional to 252,321.51, 378,555.30 and 74,832.78 is: 112,270.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,321.51 : 378,555.30 = 74,832.78 : x
  2. Step 2: Convert to fraction form
    252,321.51/378,555.30 = 74,832.78/x
  3. Step 3: Cross multiply
    252,321.51x = 378,555.30 × 74,832.78
  4. Step 4: Simplify right side
    252,321.51x = 28,328,345,482.73
  5. Step 5: Solve for x
    x = 28,328,345,482.73/252,321.51
  6. Step 6: Final answer
    x = 112,270.83

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1.5x scale

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.