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Finding the Fourth Proportional to 615.91, 924.47 and 291.50

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Solution

The fourth proportional to 615.91, 924.47 and 291.50 is: 437.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.91 : 924.47 = 291.50 : x
  2. Step 2: Convert to fraction form
    615.91/924.47 = 291.50/x
  3. Step 3: Cross multiply
    615.91x = 924.47 × 291.50
  4. Step 4: Simplify right side
    615.91x = 269,481.55
  5. Step 5: Solve for x
    x = 269,481.55/615.91
  6. Step 6: Final answer
    x = 437.54

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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.