Home / 281,257.14-422,177.31-188,411.70

Finding the Fourth Proportional to 281,257.14, 422,177.31 and 188,411.70

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Solution

The fourth proportional to 281,257.14, 422,177.31 and 188,411.70 is: 282,812.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,257.14 : 422,177.31 = 188,411.70 : x
  2. Step 2: Convert to fraction form
    281,257.14/422,177.31 = 188,411.70/x
  3. Step 3: Cross multiply
    281,257.14x = 422,177.31 × 188,411.70
  4. Step 4: Simplify right side
    281,257.14x = 79,543,144,678.53
  5. Step 5: Solve for x
    x = 79,543,144,678.53/281,257.14
  6. Step 6: Final answer
    x = 282,812.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.