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Finding the Fourth Proportional to 888.07, 1,331.17 and 302.88

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Solution

The fourth proportional to 888.07, 1,331.17 and 302.88 is: 454.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.07 : 1,331.17 = 302.88 : x
  2. Step 2: Convert to fraction form
    888.07/1,331.17 = 302.88/x
  3. Step 3: Cross multiply
    888.07x = 1,331.17 × 302.88
  4. Step 4: Simplify right side
    888.07x = 403,184.77
  5. Step 5: Solve for x
    x = 403,184.77/888.07
  6. Step 6: Final answer
    x = 454.00

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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.