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Finding the Fourth Proportional to 240.12, 360.51 and 207.57

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Solution

The fourth proportional to 240.12, 360.51 and 207.57 is: 311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.12 : 360.51 = 207.57 : x
  2. Step 2: Convert to fraction form
    240.12/360.51 = 207.57/x
  3. Step 3: Cross multiply
    240.12x = 360.51 × 207.57
  4. Step 4: Simplify right side
    240.12x = 74,831.06
  5. Step 5: Solve for x
    x = 74,831.06/240.12
  6. Step 6: Final answer
    x = 311.64

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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.