Home / 281,567.12-388,562.68-154,247.20

Finding the Fourth Proportional to 281,567.12, 388,562.68 and 154,247.20

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Solution

The fourth proportional to 281,567.12, 388,562.68 and 154,247.20 is: 212,861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,567.12 : 388,562.68 = 154,247.20 : x
  2. Step 2: Convert to fraction form
    281,567.12/388,562.68 = 154,247.20/x
  3. Step 3: Cross multiply
    281,567.12x = 388,562.68 × 154,247.20
  4. Step 4: Simplify right side
    281,567.12x = 59,934,705,414.50
  5. Step 5: Solve for x
    x = 59,934,705,414.50/281,567.12
  6. Step 6: Final answer
    x = 212,861.17

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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.