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Finding the Fourth Proportional to 610.11, 841.64 and 386.33

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Solution

The fourth proportional to 610.11, 841.64 and 386.33 is: 532.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.11 : 841.64 = 386.33 : x
  2. Step 2: Convert to fraction form
    610.11/841.64 = 386.33/x
  3. Step 3: Cross multiply
    610.11x = 841.64 × 386.33
  4. Step 4: Simplify right side
    610.11x = 325,144.64
  5. Step 5: Solve for x
    x = 325,144.64/610.11
  6. Step 6: Final answer
    x = 532.93

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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.