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Finding the Fourth Proportional to 540.57, 811.32 and 373.82

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Solution

The fourth proportional to 540.57, 811.32 and 373.82 is: 561.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.57 : 811.32 = 373.82 : x
  2. Step 2: Convert to fraction form
    540.57/811.32 = 373.82/x
  3. Step 3: Cross multiply
    540.57x = 811.32 × 373.82
  4. Step 4: Simplify right side
    540.57x = 303,282.18
  5. Step 5: Solve for x
    x = 303,282.18/540.57
  6. Step 6: Final answer
    x = 561.04

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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.