Home / 326,138.10-488,551.05-219,849.90

Finding the Fourth Proportional to 326,138.10, 488,551.05 and 219,849.90

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Solution

The fourth proportional to 326,138.10, 488,551.05 and 219,849.90 is: 329,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,138.10 : 488,551.05 = 219,849.90 : x
  2. Step 2: Convert to fraction form
    326,138.10/488,551.05 = 219,849.90/x
  3. Step 3: Cross multiply
    326,138.10x = 488,551.05 × 219,849.90
  4. Step 4: Simplify right side
    326,138.10x = 107,407,899,487.40
  5. Step 5: Solve for x
    x = 107,407,899,487.40/326,138.10
  6. Step 6: Final answer
    x = 329,332.57

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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.