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Finding the Fourth Proportional to 314.08, 432.74 and 240.17

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Solution

The fourth proportional to 314.08, 432.74 and 240.17 is: 330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.08 : 432.74 = 240.17 : x
  2. Step 2: Convert to fraction form
    314.08/432.74 = 240.17/x
  3. Step 3: Cross multiply
    314.08x = 432.74 × 240.17
  4. Step 4: Simplify right side
    314.08x = 103,929.60
  5. Step 5: Solve for x
    x = 103,929.60/314.08
  6. Step 6: Final answer
    x = 330.90

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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.