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Finding the Fourth Proportional to 918.01, 1,376.62 and 301.37

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Solution

The fourth proportional to 918.01, 1,376.62 and 301.37 is: 451.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    918.01 : 1,376.62 = 301.37 : x
  2. Step 2: Convert to fraction form
    918.01/1,376.62 = 301.37/x
  3. Step 3: Cross multiply
    918.01x = 1,376.62 × 301.37
  4. Step 4: Simplify right side
    918.01x = 414,871.22
  5. Step 5: Solve for x
    x = 414,871.22/918.01
  6. Step 6: Final answer
    x = 451.93

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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.