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Finding the Fourth Proportional to 332.93, 499.34 and 89.40

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Solution

The fourth proportional to 332.93, 499.34 and 89.40 is: 134.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.93 : 499.34 = 89.40 : x
  2. Step 2: Convert to fraction form
    332.93/499.34 = 89.40/x
  3. Step 3: Cross multiply
    332.93x = 499.34 × 89.40
  4. Step 4: Simplify right side
    332.93x = 44,643.09
  5. Step 5: Solve for x
    x = 44,643.09/332.93
  6. Step 6: Final answer
    x = 134.09

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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.