Home / 206,212.24-284,559.42-121,312.90

Finding the Fourth Proportional to 206,212.24, 284,559.42 and 121,312.90

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Solution

The fourth proportional to 206,212.24, 284,559.42 and 121,312.90 is: 167,403.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,212.24 : 284,559.42 = 121,312.90 : x
  2. Step 2: Convert to fraction form
    206,212.24/284,559.42 = 121,312.90/x
  3. Step 3: Cross multiply
    206,212.24x = 284,559.42 × 121,312.90
  4. Step 4: Simplify right side
    206,212.24x = 34,520,728,462.52
  5. Step 5: Solve for x
    x = 34,520,728,462.52/206,212.24
  6. Step 6: Final answer
    x = 167,403.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.