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Finding the Fourth Proportional to 192,556.80, 288,832.80 and 87,302.40

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Solution

The fourth proportional to 192,556.80, 288,832.80 and 87,302.40 is: 130,952.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,556.80 : 288,832.80 = 87,302.40 : x
  2. Step 2: Convert to fraction form
    192,556.80/288,832.80 = 87,302.40/x
  3. Step 3: Cross multiply
    192,556.80x = 288,832.80 × 87,302.40
  4. Step 4: Simplify right side
    192,556.80x = 25,215,796,638.72
  5. Step 5: Solve for x
    x = 25,215,796,638.72/192,556.80
  6. Step 6: Final answer
    x = 130,952.51

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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.