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Finding the Fourth Proportional to 313.88, 432.62 and 240.04

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Solution

The fourth proportional to 313.88, 432.62 and 240.04 is: 330.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.88 : 432.62 = 240.04 : x
  2. Step 2: Convert to fraction form
    313.88/432.62 = 240.04/x
  3. Step 3: Cross multiply
    313.88x = 432.62 × 240.04
  4. Step 4: Simplify right side
    313.88x = 103,844.54
  5. Step 5: Solve for x
    x = 103,844.54/313.88
  6. Step 6: Final answer
    x = 330.84

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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.