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Finding the Fourth Proportional to 367,401.75, 551,103.03 and 145,785.75

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Solution

The fourth proportional to 367,401.75, 551,103.03 and 145,785.75 is: 218,678.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,401.75 : 551,103.03 = 145,785.75 : x
  2. Step 2: Convert to fraction form
    367,401.75/551,103.03 = 145,785.75/x
  3. Step 3: Cross multiply
    367,401.75x = 551,103.03 × 145,785.75
  4. Step 4: Simplify right side
    367,401.75x = 80,342,968,555.82
  5. Step 5: Solve for x
    x = 80,342,968,555.82/367,401.75
  6. Step 6: Final answer
    x = 218,678.79

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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.