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Finding the Fourth Proportional to 611,342.20, 917,013.30 and 168,110.20

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Solution

The fourth proportional to 611,342.20, 917,013.30 and 168,110.20 is: 252,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,342.20 : 917,013.30 = 168,110.20 : x
  2. Step 2: Convert to fraction form
    611,342.20/917,013.30 = 168,110.20/x
  3. Step 3: Cross multiply
    611,342.20x = 917,013.30 × 168,110.20
  4. Step 4: Simplify right side
    611,342.20x = 154,159,289,265.66
  5. Step 5: Solve for x
    x = 154,159,289,265.66/611,342.20
  6. Step 6: Final answer
    x = 252,165.30

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Similar ratio
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1.5x scale

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.