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Finding the Fourth Proportional to 179,178.60, 268,865.10 and 74,008.20

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Solution

The fourth proportional to 179,178.60, 268,865.10 and 74,008.20 is: 111,052.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,178.60 : 268,865.10 = 74,008.20 : x
  2. Step 2: Convert to fraction form
    179,178.60/268,865.10 = 74,008.20/x
  3. Step 3: Cross multiply
    179,178.60x = 268,865.10 × 74,008.20
  4. Step 4: Simplify right side
    179,178.60x = 19,898,222,093.82
  5. Step 5: Solve for x
    x = 19,898,222,093.82/179,178.60
  6. Step 6: Final answer
    x = 111,052.45

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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.