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Finding the Fourth Proportional to 437.99, 656.98 and 113.34

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Solution

The fourth proportional to 437.99, 656.98 and 113.34 is: 170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.99 : 656.98 = 113.34 : x
  2. Step 2: Convert to fraction form
    437.99/656.98 = 113.34/x
  3. Step 3: Cross multiply
    437.99x = 656.98 × 113.34
  4. Step 4: Simplify right side
    437.99x = 74,462.11
  5. Step 5: Solve for x
    x = 74,462.11/437.99
  6. Step 6: Final answer
    x = 170.01

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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.