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Finding the Fourth Proportional to 547,450.60, 820,862.34 and 168,272.68

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Solution

The fourth proportional to 547,450.60, 820,862.34 and 168,272.68 is: 252,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,450.60 : 820,862.34 = 168,272.68 : x
  2. Step 2: Convert to fraction form
    547,450.60/820,862.34 = 168,272.68/x
  3. Step 3: Cross multiply
    547,450.60x = 820,862.34 × 168,272.68
  4. Step 4: Simplify right side
    547,450.60x = 138,128,705,862.87
  5. Step 5: Solve for x
    x = 138,128,705,862.87/547,450.60
  6. Step 6: Final answer
    x = 252,312.64

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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.