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Finding the Fourth Proportional to 543,339.80, 815,301.30 and 227,828.60

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Solution

The fourth proportional to 543,339.80, 815,301.30 and 227,828.60 is: 341,865.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,339.80 : 815,301.30 = 227,828.60 : x
  2. Step 2: Convert to fraction form
    543,339.80/815,301.30 = 227,828.60/x
  3. Step 3: Cross multiply
    543,339.80x = 815,301.30 × 227,828.60
  4. Step 4: Simplify right side
    543,339.80x = 185,748,953,757.18
  5. Step 5: Solve for x
    x = 185,748,953,757.18/543,339.80
  6. Step 6: Final answer
    x = 341,865.17

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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.