Home / 252,352.40-378,528.60-127,677.20

Finding the Fourth Proportional to 252,352.40, 378,528.60 and 127,677.20

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Solution

The fourth proportional to 252,352.40, 378,528.60 and 127,677.20 is: 191,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,352.40 : 378,528.60 = 127,677.20 : x
  2. Step 2: Convert to fraction form
    252,352.40/378,528.60 = 127,677.20/x
  3. Step 3: Cross multiply
    252,352.40x = 378,528.60 × 127,677.20
  4. Step 4: Simplify right side
    252,352.40x = 48,329,471,767.92
  5. Step 5: Solve for x
    x = 48,329,471,767.92/252,352.40
  6. Step 6: Final answer
    x = 191,515.80

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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.