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Finding the Fourth Proportional to 320,365.44, 480,250.80 and 151,964.76

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Solution

The fourth proportional to 320,365.44, 480,250.80 and 151,964.76 is: 227,806.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,365.44 : 480,250.80 = 151,964.76 : x
  2. Step 2: Convert to fraction form
    320,365.44/480,250.80 = 151,964.76/x
  3. Step 3: Cross multiply
    320,365.44x = 480,250.80 × 151,964.76
  4. Step 4: Simplify right side
    320,365.44x = 72,981,197,561.81
  5. Step 5: Solve for x
    x = 72,981,197,561.81/320,365.44
  6. Step 6: Final answer
    x = 227,806.09

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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.