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Finding the Fourth Proportional to 408,800.40, 613,200.60 and 159,482.40

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Solution

The fourth proportional to 408,800.40, 613,200.60 and 159,482.40 is: 239,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,800.40 : 613,200.60 = 159,482.40 : x
  2. Step 2: Convert to fraction form
    408,800.40/613,200.60 = 159,482.40/x
  3. Step 3: Cross multiply
    408,800.40x = 613,200.60 × 159,482.40
  4. Step 4: Simplify right side
    408,800.40x = 97,794,703,369.44
  5. Step 5: Solve for x
    x = 97,794,703,369.44/408,800.40
  6. Step 6: Final answer
    x = 239,223.60

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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.