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Finding the Fourth Proportional to 540.84, 811.28 and 175.60

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Solution

The fourth proportional to 540.84, 811.28 and 175.60 is: 263.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.84 : 811.28 = 175.60 : x
  2. Step 2: Convert to fraction form
    540.84/811.28 = 175.60/x
  3. Step 3: Cross multiply
    540.84x = 811.28 × 175.60
  4. Step 4: Simplify right side
    540.84x = 142,460.77
  5. Step 5: Solve for x
    x = 142,460.77/540.84
  6. Step 6: Final answer
    x = 263.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.