Home / 238,282.10-328,830.19-129,386.58

Finding the Fourth Proportional to 238,282.10, 328,830.19 and 129,386.58

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Solution

The fourth proportional to 238,282.10, 328,830.19 and 129,386.58 is: 178,553.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,282.10 : 328,830.19 = 129,386.58 : x
  2. Step 2: Convert to fraction form
    238,282.10/328,830.19 = 129,386.58/x
  3. Step 3: Cross multiply
    238,282.10x = 328,830.19 × 129,386.58
  4. Step 4: Simplify right side
    238,282.10x = 42,546,212,040.70
  5. Step 5: Solve for x
    x = 42,546,212,040.70/238,282.10
  6. Step 6: Final answer
    x = 178,553.96

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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.