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Finding the Fourth Proportional to 415,099.20, 622,648.80 and 134,616.45

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Solution

The fourth proportional to 415,099.20, 622,648.80 and 134,616.45 is: 201,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,099.20 : 622,648.80 = 134,616.45 : x
  2. Step 2: Convert to fraction form
    415,099.20/622,648.80 = 134,616.45/x
  3. Step 3: Cross multiply
    415,099.20x = 622,648.80 × 134,616.45
  4. Step 4: Simplify right side
    415,099.20x = 83,818,771,052.76
  5. Step 5: Solve for x
    x = 83,818,771,052.76/415,099.20
  6. Step 6: Final answer
    x = 201,924.68

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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.