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Finding the Fourth Proportional to 601.56, 900.82 and 381.51

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Solution

The fourth proportional to 601.56, 900.82 and 381.51 is: 571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.56 : 900.82 = 381.51 : x
  2. Step 2: Convert to fraction form
    601.56/900.82 = 381.51/x
  3. Step 3: Cross multiply
    601.56x = 900.82 × 381.51
  4. Step 4: Simplify right side
    601.56x = 343,671.84
  5. Step 5: Solve for x
    x = 343,671.84/601.56
  6. Step 6: Final answer
    x = 571.30

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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.