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Finding the Fourth Proportional to 888.55, 1,332.87 and 303.62

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Solution

The fourth proportional to 888.55, 1,332.87 and 303.62 is: 455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.55 : 1,332.87 = 303.62 : x
  2. Step 2: Convert to fraction form
    888.55/1,332.87 = 303.62/x
  3. Step 3: Cross multiply
    888.55x = 1,332.87 × 303.62
  4. Step 4: Simplify right side
    888.55x = 404,689.32
  5. Step 5: Solve for x
    x = 404,689.32/888.55
  6. Step 6: Final answer
    x = 455.45

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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.