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Finding the Fourth Proportional to 192,000.60, 288,000.90 and 122,189.40

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Solution

The fourth proportional to 192,000.60, 288,000.90 and 122,189.40 is: 183,284.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,000.60 : 288,000.90 = 122,189.40 : x
  2. Step 2: Convert to fraction form
    192,000.60/288,000.90 = 122,189.40/x
  3. Step 3: Cross multiply
    192,000.60x = 288,000.90 × 122,189.40
  4. Step 4: Simplify right side
    192,000.60x = 35,190,657,170.46
  5. Step 5: Solve for x
    x = 35,190,657,170.46/192,000.60
  6. Step 6: Final answer
    x = 183,284.10

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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.