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Finding the Fourth Proportional to 486,006.16, 670,718.28 and 271,146.64

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Solution

The fourth proportional to 486,006.16, 670,718.28 and 271,146.64 is: 374,198.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,006.16 : 670,718.28 = 271,146.64 : x
  2. Step 2: Convert to fraction form
    486,006.16/670,718.28 = 271,146.64/x
  3. Step 3: Cross multiply
    486,006.16x = 670,718.28 × 271,146.64
  4. Step 4: Simplify right side
    486,006.16x = 181,863,008,008.58
  5. Step 5: Solve for x
    x = 181,863,008,008.58/486,006.16
  6. Step 6: Final answer
    x = 374,198.98

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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.