Home / 326,199.30-489,181.56-112,909.26

Finding the Fourth Proportional to 326,199.30, 489,181.56 and 112,909.26

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Solution

The fourth proportional to 326,199.30, 489,181.56 and 112,909.26 is: 169,323.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,199.30 : 489,181.56 = 112,909.26 : x
  2. Step 2: Convert to fraction form
    326,199.30/489,181.56 = 112,909.26/x
  3. Step 3: Cross multiply
    326,199.30x = 489,181.56 × 112,909.26
  4. Step 4: Simplify right side
    326,199.30x = 55,233,127,945.25
  5. Step 5: Solve for x
    x = 55,233,127,945.25/326,199.30
  6. Step 6: Final answer
    x = 169,323.26

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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.