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Finding the Fourth Proportional to 888.21, 1,332.50 and 271.89

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Solution

The fourth proportional to 888.21, 1,332.50 and 271.89 is: 407.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.21 : 1,332.50 = 271.89 : x
  2. Step 2: Convert to fraction form
    888.21/1,332.50 = 271.89/x
  3. Step 3: Cross multiply
    888.21x = 1,332.50 × 271.89
  4. Step 4: Simplify right side
    888.21x = 362,292.07
  5. Step 5: Solve for x
    x = 362,292.07/888.21
  6. Step 6: Final answer
    x = 407.89

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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.