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Finding the Fourth Proportional to 328,737.70, 492,766.35 and 178,660.90

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Solution

The fourth proportional to 328,737.70, 492,766.35 and 178,660.90 is: 267,806.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,737.70 : 492,766.35 = 178,660.90 : x
  2. Step 2: Convert to fraction form
    328,737.70/492,766.35 = 178,660.90/x
  3. Step 3: Cross multiply
    328,737.70x = 492,766.35 × 178,660.90
  4. Step 4: Simplify right side
    328,737.70x = 88,038,079,580.72
  5. Step 5: Solve for x
    x = 88,038,079,580.72/328,737.70
  6. Step 6: Final answer
    x = 267,806.46

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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.