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Finding the Fourth Proportional to 326,187.26, 489,314.48 and 112,954.76

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Solution

The fourth proportional to 326,187.26, 489,314.48 and 112,954.76 is: 169,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,187.26 : 489,314.48 = 112,954.76 : x
  2. Step 2: Convert to fraction form
    326,187.26/489,314.48 = 112,954.76/x
  3. Step 3: Cross multiply
    326,187.26x = 489,314.48 × 112,954.76
  4. Step 4: Simplify right side
    326,187.26x = 55,270,401,158.60
  5. Step 5: Solve for x
    x = 55,270,401,158.60/326,187.26
  6. Step 6: Final answer
    x = 169,443.78

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1.5x scale

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.