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Finding the Fourth Proportional to 547,480.47, 821,222.64 and 168,398.65

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Solution

The fourth proportional to 547,480.47, 821,222.64 and 168,398.65 is: 252,598.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,480.47 : 821,222.64 = 168,398.65 : x
  2. Step 2: Convert to fraction form
    547,480.47/821,222.64 = 168,398.65/x
  3. Step 3: Cross multiply
    547,480.47x = 821,222.64 × 168,398.65
  4. Step 4: Simplify right side
    547,480.47x = 138,292,778,977.33
  5. Step 5: Solve for x
    x = 138,292,778,977.33/547,480.47
  6. Step 6: Final answer
    x = 252,598.56

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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.