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Finding the Fourth Proportional to 408,916.80, 613,605.60 and 159,566.40

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Solution

The fourth proportional to 408,916.80, 613,605.60 and 159,566.40 is: 239,439.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,916.80 : 613,605.60 = 159,566.40 : x
  2. Step 2: Convert to fraction form
    408,916.80/613,605.60 = 159,566.40/x
  3. Step 3: Cross multiply
    408,916.80x = 613,605.60 × 159,566.40
  4. Step 4: Simplify right side
    408,916.80x = 97,910,836,611.84
  5. Step 5: Solve for x
    x = 97,910,836,611.84/408,916.80
  6. Step 6: Final answer
    x = 239,439.51

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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.