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Finding the Fourth Proportional to 192,507.54, 288,810.51 and 74,147.10

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Solution

The fourth proportional to 192,507.54, 288,810.51 and 74,147.10 is: 111,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,507.54 : 288,810.51 = 74,147.10 : x
  2. Step 2: Convert to fraction form
    192,507.54/288,810.51 = 74,147.10/x
  3. Step 3: Cross multiply
    192,507.54x = 288,810.51 × 74,147.10
  4. Step 4: Simplify right side
    192,507.54x = 21,414,461,766.02
  5. Step 5: Solve for x
    x = 21,414,461,766.02/192,507.54
  6. Step 6: Final answer
    x = 111,239.60

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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.