Home / 261,044.10-391,602.60-111,283.20

Finding the Fourth Proportional to 261,044.10, 391,602.60 and 111,283.20

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Solution

The fourth proportional to 261,044.10, 391,602.60 and 111,283.20 is: 166,940.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,044.10 : 391,602.60 = 111,283.20 : x
  2. Step 2: Convert to fraction form
    261,044.10/391,602.60 = 111,283.20/x
  3. Step 3: Cross multiply
    261,044.10x = 391,602.60 × 111,283.20
  4. Step 4: Simplify right side
    261,044.10x = 43,578,790,456.32
  5. Step 5: Solve for x
    x = 43,578,790,456.32/261,044.10
  6. Step 6: Final answer
    x = 166,940.34

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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.