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Finding the Fourth Proportional to 331,569, 497,615.58 and 144,711.72

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Solution

The fourth proportional to 331,569, 497,615.58 and 144,711.72 is: 217,181.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,569 : 497,615.58 = 144,711.72 : x
  2. Step 2: Convert to fraction form
    331,569/497,615.58 = 144,711.72/x
  3. Step 3: Cross multiply
    331,569x = 497,615.58 × 144,711.72
  4. Step 4: Simplify right side
    331,569x = 72,010,806,480.60
  5. Step 5: Solve for x
    x = 72,010,806,480.60/331,569
  6. Step 6: Final answer
    x = 217,181.96

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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.