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Finding the Fourth Proportional to 227,632.60, 341,448.90 and 128,099.80

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Solution

The fourth proportional to 227,632.60, 341,448.90 and 128,099.80 is: 192,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,632.60 : 341,448.90 = 128,099.80 : x
  2. Step 2: Convert to fraction form
    227,632.60/341,448.90 = 128,099.80/x
  3. Step 3: Cross multiply
    227,632.60x = 341,448.90 × 128,099.80
  4. Step 4: Simplify right side
    227,632.60x = 43,739,535,800.22
  5. Step 5: Solve for x
    x = 43,739,535,800.22/227,632.60
  6. Step 6: Final answer
    x = 192,149.70

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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.