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Finding the Fourth Proportional to 328,042.10, 492,063.15 and 325,277.30

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Solution

The fourth proportional to 328,042.10, 492,063.15 and 325,277.30 is: 487,915.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,042.10 : 492,063.15 = 325,277.30 : x
  2. Step 2: Convert to fraction form
    328,042.10/492,063.15 = 325,277.30/x
  3. Step 3: Cross multiply
    328,042.10x = 492,063.15 × 325,277.30
  4. Step 4: Simplify right side
    328,042.10x = 160,056,972,861.50
  5. Step 5: Solve for x
    x = 160,056,972,861.50/328,042.10
  6. Step 6: Final answer
    x = 487,915.95

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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.