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Finding the Fourth Proportional to 192,057.40, 288,086.10 and 51,830.20

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Solution

The fourth proportional to 192,057.40, 288,086.10 and 51,830.20 is: 77,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,057.40 : 288,086.10 = 51,830.20 : x
  2. Step 2: Convert to fraction form
    192,057.40/288,086.10 = 51,830.20/x
  3. Step 3: Cross multiply
    192,057.40x = 288,086.10 × 51,830.20
  4. Step 4: Simplify right side
    192,057.40x = 14,931,560,180.22
  5. Step 5: Solve for x
    x = 14,931,560,180.22/192,057.40
  6. Step 6: Final answer
    x = 77,745.30

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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.