Home / 407,207.43-561,972.83-235,132.65

Finding the Fourth Proportional to 407,207.43, 561,972.83 and 235,132.65

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Solution

The fourth proportional to 407,207.43, 561,972.83 and 235,132.65 is: 324,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,207.43 : 561,972.83 = 235,132.65 : x
  2. Step 2: Convert to fraction form
    407,207.43/561,972.83 = 235,132.65/x
  3. Step 3: Cross multiply
    407,207.43x = 561,972.83 × 235,132.65
  4. Step 4: Simplify right side
    407,207.43x = 132,138,160,745.90
  5. Step 5: Solve for x
    x = 132,138,160,745.90/407,207.43
  6. Step 6: Final answer
    x = 324,498.40

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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.