Home / 326,821.95-490,261.17-90,164.63

Finding the Fourth Proportional to 326,821.95, 490,261.17 and 90,164.63

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Solution

The fourth proportional to 326,821.95, 490,261.17 and 90,164.63 is: 135,254.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,821.95 : 490,261.17 = 90,164.63 : x
  2. Step 2: Convert to fraction form
    326,821.95/490,261.17 = 90,164.63/x
  3. Step 3: Cross multiply
    326,821.95x = 490,261.17 × 90,164.63
  4. Step 4: Simplify right side
    326,821.95x = 44,204,218,306.60
  5. Step 5: Solve for x
    x = 44,204,218,306.60/326,821.95
  6. Step 6: Final answer
    x = 135,254.74

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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.