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Finding the Fourth Proportional to 888.25, 1,331.53 and 340.46

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Solution

The fourth proportional to 888.25, 1,331.53 and 340.46 is: 510.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.25 : 1,331.53 = 340.46 : x
  2. Step 2: Convert to fraction form
    888.25/1,331.53 = 340.46/x
  3. Step 3: Cross multiply
    888.25x = 1,331.53 × 340.46
  4. Step 4: Simplify right side
    888.25x = 453,332.70
  5. Step 5: Solve for x
    x = 453,332.70/888.25
  6. Step 6: Final answer
    x = 510.37

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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.