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Finding the Fourth Proportional to 540.16, 809.93 and 193.48

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Solution

The fourth proportional to 540.16, 809.93 and 193.48 is: 290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.16 : 809.93 = 193.48 : x
  2. Step 2: Convert to fraction form
    540.16/809.93 = 193.48/x
  3. Step 3: Cross multiply
    540.16x = 809.93 × 193.48
  4. Step 4: Simplify right side
    540.16x = 156,703.72
  5. Step 5: Solve for x
    x = 156,703.72/540.16
  6. Step 6: Final answer
    x = 290.11

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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.