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Finding the Fourth Proportional to 281,704, 388,751.52 and 162,472

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Solution

The fourth proportional to 281,704, 388,751.52 and 162,472 is: 224,211.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,704 : 388,751.52 = 162,472 : x
  2. Step 2: Convert to fraction form
    281,704/388,751.52 = 162,472/x
  3. Step 3: Cross multiply
    281,704x = 388,751.52 × 162,472
  4. Step 4: Simplify right side
    281,704x = 63,161,236,957.44
  5. Step 5: Solve for x
    x = 63,161,236,957.44/281,704
  6. Step 6: Final answer
    x = 224,211.36

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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.