Home / 282,531.78-389,996.19-187,069.23

Finding the Fourth Proportional to 282,531.78, 389,996.19 and 187,069.23

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Solution

The fourth proportional to 282,531.78, 389,996.19 and 187,069.23 is: 258,223.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,531.78 : 389,996.19 = 187,069.23 : x
  2. Step 2: Convert to fraction form
    282,531.78/389,996.19 = 187,069.23/x
  3. Step 3: Cross multiply
    282,531.78x = 389,996.19 × 187,069.23
  4. Step 4: Simplify right side
    282,531.78x = 72,956,286,966.23
  5. Step 5: Solve for x
    x = 72,956,286,966.23/282,531.78
  6. Step 6: Final answer
    x = 258,223.29

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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.