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Finding the Fourth Proportional to 178,780.66, 268,170.72 and 45,660.88

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Solution

The fourth proportional to 178,780.66, 268,170.72 and 45,660.88 is: 68,491.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,780.66 : 268,170.72 = 45,660.88 : x
  2. Step 2: Convert to fraction form
    178,780.66/268,170.72 = 45,660.88/x
  3. Step 3: Cross multiply
    178,780.66x = 268,170.72 × 45,660.88
  4. Step 4: Simplify right side
    178,780.66x = 12,244,911,065.43
  5. Step 5: Solve for x
    x = 12,244,911,065.43/178,780.66
  6. Step 6: Final answer
    x = 68,491.25

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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.