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Finding the Fourth Proportional to 381,941.60, 572,912.40 and 293,640.80

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Solution

The fourth proportional to 381,941.60, 572,912.40 and 293,640.80 is: 440,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,941.60 : 572,912.40 = 293,640.80 : x
  2. Step 2: Convert to fraction form
    381,941.60/572,912.40 = 293,640.80/x
  3. Step 3: Cross multiply
    381,941.60x = 572,912.40 × 293,640.80
  4. Step 4: Simplify right side
    381,941.60x = 168,230,455,465.92
  5. Step 5: Solve for x
    x = 168,230,455,465.92/381,941.60
  6. Step 6: Final answer
    x = 440,461.20

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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.