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Finding the Fourth Proportional to 547,448.60, 820,859.34 and 168,270.68

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Solution

The fourth proportional to 547,448.60, 820,859.34 and 168,270.68 is: 252,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,448.60 : 820,859.34 = 168,270.68 : x
  2. Step 2: Convert to fraction form
    547,448.60/820,859.34 = 168,270.68/x
  3. Step 3: Cross multiply
    547,448.60x = 820,859.34 × 168,270.68
  4. Step 4: Simplify right side
    547,448.60x = 138,126,559,326.15
  5. Step 5: Solve for x
    x = 138,126,559,326.15/547,448.60
  6. Step 6: Final answer
    x = 252,309.64

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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.