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Finding the Fourth Proportional to 655,155.63, 982,738.91 and 205,866.54

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Solution

The fourth proportional to 655,155.63, 982,738.91 and 205,866.54 is: 308,801.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,155.63 : 982,738.91 = 205,866.54 : x
  2. Step 2: Convert to fraction form
    655,155.63/982,738.91 = 205,866.54/x
  3. Step 3: Cross multiply
    655,155.63x = 982,738.91 × 205,866.54
  4. Step 4: Simplify right side
    655,155.63x = 202,313,058,095.74
  5. Step 5: Solve for x
    x = 202,313,058,095.74/655,155.63
  6. Step 6: Final answer
    x = 308,801.53

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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.