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Finding the Fourth Proportional to 577.75, 867.39 and 347.07

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Solution

The fourth proportional to 577.75, 867.39 and 347.07 is: 521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.75 : 867.39 = 347.07 : x
  2. Step 2: Convert to fraction form
    577.75/867.39 = 347.07/x
  3. Step 3: Cross multiply
    577.75x = 867.39 × 347.07
  4. Step 4: Simplify right side
    577.75x = 301,045.05
  5. Step 5: Solve for x
    x = 301,045.05/577.75
  6. Step 6: Final answer
    x = 521.06

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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.