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Finding the Fourth Proportional to 444.03, 666.35 and 155.47

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Solution

The fourth proportional to 444.03, 666.35 and 155.47 is: 233.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.03 : 666.35 = 155.47 : x
  2. Step 2: Convert to fraction form
    444.03/666.35 = 155.47/x
  3. Step 3: Cross multiply
    444.03x = 666.35 × 155.47
  4. Step 4: Simplify right side
    444.03x = 103,597.43
  5. Step 5: Solve for x
    x = 103,597.43/444.03
  6. Step 6: Final answer
    x = 233.31

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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.