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Finding the Fourth Proportional to 367,806.96, 551,776.05 and 143,289.54

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Solution

The fourth proportional to 367,806.96, 551,776.05 and 143,289.54 is: 214,959.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,806.96 : 551,776.05 = 143,289.54 : x
  2. Step 2: Convert to fraction form
    367,806.96/551,776.05 = 143,289.54/x
  3. Step 3: Cross multiply
    367,806.96x = 551,776.05 × 143,289.54
  4. Step 4: Simplify right side
    367,806.96x = 79,063,736,387.52
  5. Step 5: Solve for x
    x = 79,063,736,387.52/367,806.96
  6. Step 6: Final answer
    x = 214,959.87

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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.