Home / 281,836.80-388,926.36-154,508.04

Finding the Fourth Proportional to 281,836.80, 388,926.36 and 154,508.04

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Solution

The fourth proportional to 281,836.80, 388,926.36 and 154,508.04 is: 213,216.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,836.80 : 388,926.36 = 154,508.04 : x
  2. Step 2: Convert to fraction form
    281,836.80/388,926.36 = 154,508.04/x
  3. Step 3: Cross multiply
    281,836.80x = 388,926.36 × 154,508.04
  4. Step 4: Simplify right side
    281,836.80x = 60,092,249,587.93
  5. Step 5: Solve for x
    x = 60,092,249,587.93/281,836.80
  6. Step 6: Final answer
    x = 213,216.48

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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.