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Finding the Fourth Proportional to 327,601.60, 491,661.60 and 128,017.60

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Solution

The fourth proportional to 327,601.60, 491,661.60 and 128,017.60 is: 192,127.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,601.60 : 491,661.60 = 128,017.60 : x
  2. Step 2: Convert to fraction form
    327,601.60/491,661.60 = 128,017.60/x
  3. Step 3: Cross multiply
    327,601.60x = 491,661.60 × 128,017.60
  4. Step 4: Simplify right side
    327,601.60x = 62,941,338,044.16
  5. Step 5: Solve for x
    x = 62,941,338,044.16/327,601.60
  6. Step 6: Final answer
    x = 192,127.69

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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.