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Finding the Fourth Proportional to 577.90, 797.75 and 368.09

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Solution

The fourth proportional to 577.90, 797.75 and 368.09 is: 508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.90 : 797.75 = 368.09 : x
  2. Step 2: Convert to fraction form
    577.90/797.75 = 368.09/x
  3. Step 3: Cross multiply
    577.90x = 797.75 × 368.09
  4. Step 4: Simplify right side
    577.90x = 293,643.80
  5. Step 5: Solve for x
    x = 293,643.80/577.90
  6. Step 6: Final answer
    x = 508.12

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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.