Home / 661,252.29-991,849.28-211,995.72

Finding the Fourth Proportional to 661,252.29, 991,849.28 and 211,995.72

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Solution

The fourth proportional to 661,252.29, 991,849.28 and 211,995.72 is: 317,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,252.29 : 991,849.28 = 211,995.72 : x
  2. Step 2: Convert to fraction form
    661,252.29/991,849.28 = 211,995.72/x
  3. Step 3: Cross multiply
    661,252.29x = 991,849.28 × 211,995.72
  4. Step 4: Simplify right side
    661,252.29x = 210,267,801,185.10
  5. Step 5: Solve for x
    x = 210,267,801,185.10/661,252.29
  6. Step 6: Final answer
    x = 317,984.23

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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.