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Finding the Fourth Proportional to 615.24, 848.58 and 381.96

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Solution

The fourth proportional to 615.24, 848.58 and 381.96 is: 526.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.24 : 848.58 = 381.96 : x
  2. Step 2: Convert to fraction form
    615.24/848.58 = 381.96/x
  3. Step 3: Cross multiply
    615.24x = 848.58 × 381.96
  4. Step 4: Simplify right side
    615.24x = 324,123.62
  5. Step 5: Solve for x
    x = 324,123.62/615.24
  6. Step 6: Final answer
    x = 526.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.