Home / 281,553.04-388,543.28-154,233.20

Finding the Fourth Proportional to 281,553.04, 388,543.28 and 154,233.20

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Solution

The fourth proportional to 281,553.04, 388,543.28 and 154,233.20 is: 212,841.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,553.04 : 388,543.28 = 154,233.20 : x
  2. Step 2: Convert to fraction form
    281,553.04/388,543.28 = 154,233.20/x
  3. Step 3: Cross multiply
    281,553.04x = 388,543.28 × 154,233.20
  4. Step 4: Simplify right side
    281,553.04x = 59,926,273,412.90
  5. Step 5: Solve for x
    x = 59,926,273,412.90/281,553.04
  6. Step 6: Final answer
    x = 212,841.86

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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.