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Finding the Fourth Proportional to 661.84, 991.14 and 467.44

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Solution

The fourth proportional to 661.84, 991.14 and 467.44 is: 700.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    661.84 : 991.14 = 467.44 : x
  2. Step 2: Convert to fraction form
    661.84/991.14 = 467.44/x
  3. Step 3: Cross multiply
    661.84x = 991.14 × 467.44
  4. Step 4: Simplify right side
    661.84x = 463,298.48
  5. Step 5: Solve for x
    x = 463,298.48/661.84
  6. Step 6: Final answer
    x = 700.02

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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.