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Finding the Fourth Proportional to 935.14, 1,401.81 and 349.98

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Solution

The fourth proportional to 935.14, 1,401.81 and 349.98 is: 524.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.14 : 1,401.81 = 349.98 : x
  2. Step 2: Convert to fraction form
    935.14/1,401.81 = 349.98/x
  3. Step 3: Cross multiply
    935.14x = 1,401.81 × 349.98
  4. Step 4: Simplify right side
    935.14x = 490,605.46
  5. Step 5: Solve for x
    x = 490,605.46/935.14
  6. Step 6: Final answer
    x = 524.64

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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.