Home / 326,276.60-489,026.10-136,736.60

Finding the Fourth Proportional to 326,276.60, 489,026.10 and 136,736.60

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Solution

The fourth proportional to 326,276.60, 489,026.10 and 136,736.60 is: 204,941.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,276.60 : 489,026.10 = 136,736.60 : x
  2. Step 2: Convert to fraction form
    326,276.60/489,026.10 = 136,736.60/x
  3. Step 3: Cross multiply
    326,276.60x = 489,026.10 × 136,736.60
  4. Step 4: Simplify right side
    326,276.60x = 66,867,766,225.26
  5. Step 5: Solve for x
    x = 66,867,766,225.26/326,276.60
  6. Step 6: Final answer
    x = 204,941.96

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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.