Home / 220,995.15-331,830.50-211,897.23

Finding the Fourth Proportional to 220,995.15, 331,830.50 and 211,897.23

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Solution

The fourth proportional to 220,995.15, 331,830.50 and 211,897.23 is: 318,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,995.15 : 331,830.50 = 211,897.23 : x
  2. Step 2: Convert to fraction form
    220,995.15/331,830.50 = 211,897.23/x
  3. Step 3: Cross multiply
    220,995.15x = 331,830.50 × 211,897.23
  4. Step 4: Simplify right side
    220,995.15x = 70,313,963,779.52
  5. Step 5: Solve for x
    x = 70,313,963,779.52/220,995.15
  6. Step 6: Final answer
    x = 318,169.71

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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.