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Finding the Fourth Proportional to 656.95, 906.59 and 362.22

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Solution

The fourth proportional to 656.95, 906.59 and 362.22 is: 499.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.95 : 906.59 = 362.22 : x
  2. Step 2: Convert to fraction form
    656.95/906.59 = 362.22/x
  3. Step 3: Cross multiply
    656.95x = 906.59 × 362.22
  4. Step 4: Simplify right side
    656.95x = 328,380.50
  5. Step 5: Solve for x
    x = 328,380.50/656.95
  6. Step 6: Final answer
    x = 499.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.