Home / 221,331.07-331,854.33-145,339.83

Finding the Fourth Proportional to 221,331.07, 331,854.33 and 145,339.83

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Solution

The fourth proportional to 221,331.07, 331,854.33 and 145,339.83 is: 217,916.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,331.07 : 331,854.33 = 145,339.83 : x
  2. Step 2: Convert to fraction form
    221,331.07/331,854.33 = 145,339.83/x
  3. Step 3: Cross multiply
    221,331.07x = 331,854.33 × 145,339.83
  4. Step 4: Simplify right side
    221,331.07x = 48,231,649,520.99
  5. Step 5: Solve for x
    x = 48,231,649,520.99/221,331.07
  6. Step 6: Final answer
    x = 217,916.31

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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.