Home / 278,257.44-383,939.28-176,322.72

Finding the Fourth Proportional to 278,257.44, 383,939.28 and 176,322.72

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Solution

The fourth proportional to 278,257.44, 383,939.28 and 176,322.72 is: 243,289.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,257.44 : 383,939.28 = 176,322.72 : x
  2. Step 2: Convert to fraction form
    278,257.44/383,939.28 = 176,322.72/x
  3. Step 3: Cross multiply
    278,257.44x = 383,939.28 × 176,322.72
  4. Step 4: Simplify right side
    278,257.44x = 67,697,218,164.44
  5. Step 5: Solve for x
    x = 67,697,218,164.44/278,257.44
  6. Step 6: Final answer
    x = 243,289.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.