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Finding the Fourth Proportional to 500.07, 689.85 and 334.32

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Solution

The fourth proportional to 500.07, 689.85 and 334.32 is: 461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.07 : 689.85 = 334.32 : x
  2. Step 2: Convert to fraction form
    500.07/689.85 = 334.32/x
  3. Step 3: Cross multiply
    500.07x = 689.85 × 334.32
  4. Step 4: Simplify right side
    500.07x = 230,631.54
  5. Step 5: Solve for x
    x = 230,631.54/500.07
  6. Step 6: Final answer
    x = 461.20

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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.