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Finding the Fourth Proportional to 368.48, 511.04 and 355.52

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Solution

The fourth proportional to 368.48, 511.04 and 355.52 is: 493.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.48 : 511.04 = 355.52 : x
  2. Step 2: Convert to fraction form
    368.48/511.04 = 355.52/x
  3. Step 3: Cross multiply
    368.48x = 511.04 × 355.52
  4. Step 4: Simplify right side
    368.48x = 181,684.94
  5. Step 5: Solve for x
    x = 181,684.94/368.48
  6. Step 6: Final answer
    x = 493.07

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.