Home / 326,501.10-489,095.55-220,212.90

Finding the Fourth Proportional to 326,501.10, 489,095.55 and 220,212.90

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Solution

The fourth proportional to 326,501.10, 489,095.55 and 220,212.90 is: 329,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,501.10 : 489,095.55 = 220,212.90 : x
  2. Step 2: Convert to fraction form
    326,501.10/489,095.55 = 220,212.90/x
  3. Step 3: Cross multiply
    326,501.10x = 489,095.55 × 220,212.90
  4. Step 4: Simplify right side
    326,501.10x = 107,705,149,442.60
  5. Step 5: Solve for x
    x = 107,705,149,442.60/326,501.10
  6. Step 6: Final answer
    x = 329,876.83

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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.