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Finding the Fourth Proportional to 316,236.30, 474,412.77 and 100,149.54

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Solution

The fourth proportional to 316,236.30, 474,412.77 and 100,149.54 is: 150,242.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,236.30 : 474,412.77 = 100,149.54 : x
  2. Step 2: Convert to fraction form
    316,236.30/474,412.77 = 100,149.54/x
  3. Step 3: Cross multiply
    316,236.30x = 474,412.77 × 100,149.54
  4. Step 4: Simplify right side
    316,236.30x = 47,512,220,685.63
  5. Step 5: Solve for x
    x = 47,512,220,685.63/316,236.30
  6. Step 6: Final answer
    x = 150,242.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.