Home / 547,989.39-821,905.72-188,153.51

Finding the Fourth Proportional to 547,989.39, 821,905.72 and 188,153.51

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Solution

The fourth proportional to 547,989.39, 821,905.72 and 188,153.51 is: 282,203.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,989.39 : 821,905.72 = 188,153.51 : x
  2. Step 2: Convert to fraction form
    547,989.39/821,905.72 = 188,153.51/x
  3. Step 3: Cross multiply
    547,989.39x = 821,905.72 × 188,153.51
  4. Step 4: Simplify right side
    547,989.39x = 154,644,446,107.08
  5. Step 5: Solve for x
    x = 154,644,446,107.08/547,989.39
  6. Step 6: Final answer
    x = 282,203.36

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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.