Home / 661,174.20-991,761.30-211,894.20

Finding the Fourth Proportional to 661,174.20, 991,761.30 and 211,894.20

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Solution

The fourth proportional to 661,174.20, 991,761.30 and 211,894.20 is: 317,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,174.20 : 991,761.30 = 211,894.20 : x
  2. Step 2: Convert to fraction form
    661,174.20/991,761.30 = 211,894.20/x
  3. Step 3: Cross multiply
    661,174.20x = 991,761.30 × 211,894.20
  4. Step 4: Simplify right side
    661,174.20x = 210,148,467,254.46
  5. Step 5: Solve for x
    x = 210,148,467,254.46/661,174.20
  6. Step 6: Final answer
    x = 317,841.30

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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.