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Finding the Fourth Proportional to 615.84, 923.76 and 268.89

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Solution

The fourth proportional to 615.84, 923.76 and 268.89 is: 403.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.84 : 923.76 = 268.89 : x
  2. Step 2: Convert to fraction form
    615.84/923.76 = 268.89/x
  3. Step 3: Cross multiply
    615.84x = 923.76 × 268.89
  4. Step 4: Simplify right side
    615.84x = 248,389.83
  5. Step 5: Solve for x
    x = 248,389.83/615.84
  6. Step 6: Final answer
    x = 403.34

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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.