Home / 540.18-811.30-336.18

Finding the Fourth Proportional to 540.18, 811.30 and 336.18

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Solution

The fourth proportional to 540.18, 811.30 and 336.18 is: 504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.18 : 811.30 = 336.18 : x
  2. Step 2: Convert to fraction form
    540.18/811.30 = 336.18/x
  3. Step 3: Cross multiply
    540.18x = 811.30 × 336.18
  4. Step 4: Simplify right side
    540.18x = 272,742.83
  5. Step 5: Solve for x
    x = 272,742.83/540.18
  6. Step 6: Final answer
    x = 504.91

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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.