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Finding the Fourth Proportional to 484.77, 669.30 and 368.13

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Solution

The fourth proportional to 484.77, 669.30 and 368.13 is: 508.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.77 : 669.30 = 368.13 : x
  2. Step 2: Convert to fraction form
    484.77/669.30 = 368.13/x
  3. Step 3: Cross multiply
    484.77x = 669.30 × 368.13
  4. Step 4: Simplify right side
    484.77x = 246,389.41
  5. Step 5: Solve for x
    x = 246,389.41/484.77
  6. Step 6: Final answer
    x = 508.26

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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.