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Finding the Fourth Proportional to 192,384.60, 288,576.90 and 121,525.80

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Solution

The fourth proportional to 192,384.60, 288,576.90 and 121,525.80 is: 182,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,384.60 : 288,576.90 = 121,525.80 : x
  2. Step 2: Convert to fraction form
    192,384.60/288,576.90 = 121,525.80/x
  3. Step 3: Cross multiply
    192,384.60x = 288,576.90 × 121,525.80
  4. Step 4: Simplify right side
    192,384.60x = 35,069,538,634.02
  5. Step 5: Solve for x
    x = 35,069,538,634.02/192,384.60
  6. Step 6: Final answer
    x = 182,288.70

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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.