Home / 543,540.71-815,353.79-144,181.55

Finding the Fourth Proportional to 543,540.71, 815,353.79 and 144,181.55

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Solution

The fourth proportional to 543,540.71, 815,353.79 and 144,181.55 is: 216,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,540.71 : 815,353.79 = 144,181.55 : x
  2. Step 2: Convert to fraction form
    543,540.71/815,353.79 = 144,181.55/x
  3. Step 3: Cross multiply
    543,540.71x = 815,353.79 × 144,181.55
  4. Step 4: Simplify right side
    543,540.71x = 117,558,968,442.90
  5. Step 5: Solve for x
    x = 117,558,968,442.90/543,540.71
  6. Step 6: Final answer
    x = 216,283.65

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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.