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Finding the Fourth Proportional to 242.60, 364.14 and 151.40

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Solution

The fourth proportional to 242.60, 364.14 and 151.40 is: 227.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.60 : 364.14 = 151.40 : x
  2. Step 2: Convert to fraction form
    242.60/364.14 = 151.40/x
  3. Step 3: Cross multiply
    242.60x = 364.14 × 151.40
  4. Step 4: Simplify right side
    242.60x = 55,130.80
  5. Step 5: Solve for x
    x = 55,130.80/242.60
  6. Step 6: Final answer
    x = 227.25

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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.