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Finding the Fourth Proportional to 374,438.70, 561,660.45 and 149,817.90

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Solution

The fourth proportional to 374,438.70, 561,660.45 and 149,817.90 is: 224,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,438.70 : 561,660.45 = 149,817.90 : x
  2. Step 2: Convert to fraction form
    374,438.70/561,660.45 = 149,817.90/x
  3. Step 3: Cross multiply
    374,438.70x = 561,660.45 × 149,817.90
  4. Step 4: Simplify right side
    374,438.70x = 84,146,789,132.06
  5. Step 5: Solve for x
    x = 84,146,789,132.06/374,438.70
  6. Step 6: Final answer
    x = 224,727.81

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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.