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Finding the Fourth Proportional to 360.51, 541.23 and 309.48

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Solution

The fourth proportional to 360.51, 541.23 and 309.48 is: 464.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.51 : 541.23 = 309.48 : x
  2. Step 2: Convert to fraction form
    360.51/541.23 = 309.48/x
  3. Step 3: Cross multiply
    360.51x = 541.23 × 309.48
  4. Step 4: Simplify right side
    360.51x = 167,499.86
  5. Step 5: Solve for x
    x = 167,499.86/360.51
  6. Step 6: Final answer
    x = 464.62

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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.