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Finding the Fourth Proportional to 388,099.60, 582,149.40 and 201,168.40

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Solution

The fourth proportional to 388,099.60, 582,149.40 and 201,168.40 is: 301,752.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,099.60 : 582,149.40 = 201,168.40 : x
  2. Step 2: Convert to fraction form
    388,099.60/582,149.40 = 201,168.40/x
  3. Step 3: Cross multiply
    388,099.60x = 582,149.40 × 201,168.40
  4. Step 4: Simplify right side
    388,099.60x = 117,110,063,358.96
  5. Step 5: Solve for x
    x = 117,110,063,358.96/388,099.60
  6. Step 6: Final answer
    x = 301,752.60

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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.