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Finding the Fourth Proportional to 374,423.20, 561,707.70 and 161,190.70

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Solution

The fourth proportional to 374,423.20, 561,707.70 and 161,190.70 is: 241,817.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,423.20 : 561,707.70 = 161,190.70 : x
  2. Step 2: Convert to fraction form
    374,423.20/561,707.70 = 161,190.70/x
  3. Step 3: Cross multiply
    374,423.20x = 561,707.70 × 161,190.70
  4. Step 4: Simplify right side
    374,423.20x = 90,542,057,358.39
  5. Step 5: Solve for x
    x = 90,542,057,358.39/374,423.20
  6. Step 6: Final answer
    x = 241,817.43

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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.