Home / 338,142.45-506,847.55-219,898.65

Finding the Fourth Proportional to 338,142.45, 506,847.55 and 219,898.65

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Solution

The fourth proportional to 338,142.45, 506,847.55 and 219,898.65 is: 329,609.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,142.45 : 506,847.55 = 219,898.65 : x
  2. Step 2: Convert to fraction form
    338,142.45/506,847.55 = 219,898.65/x
  3. Step 3: Cross multiply
    338,142.45x = 506,847.55 × 219,898.65
  4. Step 4: Simplify right side
    338,142.45x = 111,455,092,000.81
  5. Step 5: Solve for x
    x = 111,455,092,000.81/338,142.45
  6. Step 6: Final answer
    x = 329,609.88

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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.