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Finding the Fourth Proportional to 657.09, 984.69 and 332.64

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Solution

The fourth proportional to 657.09, 984.69 and 332.64 is: 498.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.09 : 984.69 = 332.64 : x
  2. Step 2: Convert to fraction form
    657.09/984.69 = 332.64/x
  3. Step 3: Cross multiply
    657.09x = 984.69 × 332.64
  4. Step 4: Simplify right side
    657.09x = 327,547.28
  5. Step 5: Solve for x
    x = 327,547.28/657.09
  6. Step 6: Final answer
    x = 498.48

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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.