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Finding the Fourth Proportional to 486,006.50, 670,689.38 and 271,146.62

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Solution

The fourth proportional to 486,006.50, 670,689.38 and 271,146.62 is: 374,182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,006.50 : 670,689.38 = 271,146.62 : x
  2. Step 2: Convert to fraction form
    486,006.50/670,689.38 = 271,146.62/x
  3. Step 3: Cross multiply
    486,006.50x = 670,689.38 × 271,146.62
  4. Step 4: Simplify right side
    486,006.50x = 181,855,153,747.72
  5. Step 5: Solve for x
    x = 181,855,153,747.72/486,006.50
  6. Step 6: Final answer
    x = 374,182.56

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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.