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Finding the Fourth Proportional to 551,223.20, 826,251.60 and 214,133.60

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Solution

The fourth proportional to 551,223.20, 826,251.60 and 214,133.60 is: 320,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,223.20 : 826,251.60 = 214,133.60 : x
  2. Step 2: Convert to fraction form
    551,223.20/826,251.60 = 214,133.60/x
  3. Step 3: Cross multiply
    551,223.20x = 826,251.60 × 214,133.60
  4. Step 4: Simplify right side
    551,223.20x = 176,928,229,613.76
  5. Step 5: Solve for x
    x = 176,928,229,613.76/551,223.20
  6. Step 6: Final answer
    x = 320,973.84

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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.