Home / 255,326.91-383,329.62-218,126.04

Finding the Fourth Proportional to 255,326.91, 383,329.62 and 218,126.04

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Solution

The fourth proportional to 255,326.91, 383,329.62 and 218,126.04 is: 327,478.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,326.91 : 383,329.62 = 218,126.04 : x
  2. Step 2: Convert to fraction form
    255,326.91/383,329.62 = 218,126.04/x
  3. Step 3: Cross multiply
    255,326.91x = 383,329.62 × 218,126.04
  4. Step 4: Simplify right side
    255,326.91x = 83,614,172,025.30
  5. Step 5: Solve for x
    x = 83,614,172,025.30/255,326.91
  6. Step 6: Final answer
    x = 327,478.89

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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.