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Finding the Fourth Proportional to 192,079.80, 288,378.90 and 122,095.80

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Solution

The fourth proportional to 192,079.80, 288,378.90 and 122,095.80 is: 183,308.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,079.80 : 288,378.90 = 122,095.80 : x
  2. Step 2: Convert to fraction form
    192,079.80/288,378.90 = 122,095.80/x
  3. Step 3: Cross multiply
    192,079.80x = 288,378.90 × 122,095.80
  4. Step 4: Simplify right side
    192,079.80x = 35,209,852,498.62
  5. Step 5: Solve for x
    x = 35,209,852,498.62/192,079.80
  6. Step 6: Final answer
    x = 183,308.46

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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.