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Finding the Fourth Proportional to 360.81, 541.32 and 117.30

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Solution

The fourth proportional to 360.81, 541.32 and 117.30 is: 175.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.81 : 541.32 = 117.30 : x
  2. Step 2: Convert to fraction form
    360.81/541.32 = 117.30/x
  3. Step 3: Cross multiply
    360.81x = 541.32 × 117.30
  4. Step 4: Simplify right side
    360.81x = 63,498.43
  5. Step 5: Solve for x
    x = 63,498.43/360.81
  6. Step 6: Final answer
    x = 175.99

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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.