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Finding the Fourth Proportional to 700.40, 1,049.12 and 334.82

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Solution

The fourth proportional to 700.40, 1,049.12 and 334.82 is: 501.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.40 : 1,049.12 = 334.82 : x
  2. Step 2: Convert to fraction form
    700.40/1,049.12 = 334.82/x
  3. Step 3: Cross multiply
    700.40x = 1,049.12 × 334.82
  4. Step 4: Simplify right side
    700.40x = 351,259.44
  5. Step 5: Solve for x
    x = 351,259.44/700.40
  6. Step 6: Final answer
    x = 501.52

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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.