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Finding the Fourth Proportional to 547,648.38, 821,495.34 and 188,066.34

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Solution

The fourth proportional to 547,648.38, 821,495.34 and 188,066.34 is: 282,107.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,648.38 : 821,495.34 = 188,066.34 : x
  2. Step 2: Convert to fraction form
    547,648.38/821,495.34 = 188,066.34/x
  3. Step 3: Cross multiply
    547,648.38x = 821,495.34 × 188,066.34
  4. Step 4: Simplify right side
    547,648.38x = 154,495,621,920.86
  5. Step 5: Solve for x
    x = 154,495,621,920.86/547,648.38
  6. Step 6: Final answer
    x = 282,107.33

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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.