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Finding the Fourth Proportional to 242.60, 334.58 and 183.74

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Solution

The fourth proportional to 242.60, 334.58 and 183.74 is: 253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.60 : 334.58 = 183.74 : x
  2. Step 2: Convert to fraction form
    242.60/334.58 = 183.74/x
  3. Step 3: Cross multiply
    242.60x = 334.58 × 183.74
  4. Step 4: Simplify right side
    242.60x = 61,473.14
  5. Step 5: Solve for x
    x = 61,473.14/242.60
  6. Step 6: Final answer
    x = 253.40

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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.