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Finding the Fourth Proportional to 278,167.67, 383,706.89 and 177,565.67

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Solution

The fourth proportional to 278,167.67, 383,706.89 and 177,565.67 is: 244,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,167.67 : 383,706.89 = 177,565.67 : x
  2. Step 2: Convert to fraction form
    278,167.67/383,706.89 = 177,565.67/x
  3. Step 3: Cross multiply
    278,167.67x = 383,706.89 × 177,565.67
  4. Step 4: Simplify right side
    278,167.67x = 68,133,170,304.88
  5. Step 5: Solve for x
    x = 68,133,170,304.88/278,167.67
  6. Step 6: Final answer
    x = 244,935.62

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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.