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Finding the Fourth Proportional to 281,854.38, 388,974.96 and 167,200.91

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Solution

The fourth proportional to 281,854.38, 388,974.96 and 167,200.91 is: 230,746.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,854.38 : 388,974.96 = 167,200.91 : x
  2. Step 2: Convert to fraction form
    281,854.38/388,974.96 = 167,200.91/x
  3. Step 3: Cross multiply
    281,854.38x = 388,974.96 × 167,200.91
  4. Step 4: Simplify right side
    281,854.38x = 65,036,966,792.99
  5. Step 5: Solve for x
    x = 65,036,966,792.99/281,854.38
  6. Step 6: Final answer
    x = 230,746.69

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1.5x scale

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.