Home / 252,321.18-378,417.42-74,786.59

Finding the Fourth Proportional to 252,321.18, 378,417.42 and 74,786.59

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Solution

The fourth proportional to 252,321.18, 378,417.42 and 74,786.59 is: 112,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,321.18 : 378,417.42 = 74,786.59 : x
  2. Step 2: Convert to fraction form
    252,321.18/378,417.42 = 74,786.59/x
  3. Step 3: Cross multiply
    252,321.18x = 378,417.42 × 74,786.59
  4. Step 4: Simplify right side
    252,321.18x = 28,300,548,911.42
  5. Step 5: Solve for x
    x = 28,300,548,911.42/252,321.18
  6. Step 6: Final answer
    x = 112,160.82

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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.