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Finding the Fourth Proportional to 650.09, 897.10 and 355.36

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Solution

The fourth proportional to 650.09, 897.10 and 355.36 is: 490.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.09 : 897.10 = 355.36 : x
  2. Step 2: Convert to fraction form
    650.09/897.10 = 355.36/x
  3. Step 3: Cross multiply
    650.09x = 897.10 × 355.36
  4. Step 4: Simplify right side
    650.09x = 318,788.97
  5. Step 5: Solve for x
    x = 318,788.97/650.09
  6. Step 6: Final answer
    x = 490.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.