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Finding the Fourth Proportional to 610,546.80, 915,959.70 and 211,187.22

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Solution

The fourth proportional to 610,546.80, 915,959.70 and 211,187.22 is: 316,829.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,546.80 : 915,959.70 = 211,187.22 : x
  2. Step 2: Convert to fraction form
    610,546.80/915,959.70 = 211,187.22/x
  3. Step 3: Cross multiply
    610,546.80x = 915,959.70 × 211,187.22
  4. Step 4: Simplify right side
    610,546.80x = 193,438,982,675.03
  5. Step 5: Solve for x
    x = 193,438,982,675.03/610,546.80
  6. Step 6: Final answer
    x = 316,829.08

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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.