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Finding the Fourth Proportional to 540.95, 811.55 and 175.70

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Solution

The fourth proportional to 540.95, 811.55 and 175.70 is: 263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.95 : 811.55 = 175.70 : x
  2. Step 2: Convert to fraction form
    540.95/811.55 = 175.70/x
  3. Step 3: Cross multiply
    540.95x = 811.55 × 175.70
  4. Step 4: Simplify right side
    540.95x = 142,591.80
  5. Step 5: Solve for x
    x = 142,591.80/540.95
  6. Step 6: Final answer
    x = 263.60

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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.