Home / 252,722.28-378,885.24-126,356.88

Finding the Fourth Proportional to 252,722.28, 378,885.24 and 126,356.88

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Solution

The fourth proportional to 252,722.28, 378,885.24 and 126,356.88 is: 189,436.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,722.28 : 378,885.24 = 126,356.88 : x
  2. Step 2: Convert to fraction form
    252,722.28/378,885.24 = 126,356.88/x
  3. Step 3: Cross multiply
    252,722.28x = 378,885.24 × 126,356.88
  4. Step 4: Simplify right side
    252,722.28x = 47,874,756,804.45
  5. Step 5: Solve for x
    x = 47,874,756,804.45/252,722.28
  6. Step 6: Final answer
    x = 189,436.23

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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.