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Finding the Fourth Proportional to 242,674.94, 334,891.68 and 135,242.54

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Solution

The fourth proportional to 242,674.94, 334,891.68 and 135,242.54 is: 186,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,674.94 : 334,891.68 = 135,242.54 : x
  2. Step 2: Convert to fraction form
    242,674.94/334,891.68 = 135,242.54/x
  3. Step 3: Cross multiply
    242,674.94x = 334,891.68 × 135,242.54
  4. Step 4: Simplify right side
    242,674.94x = 45,291,601,428.07
  5. Step 5: Solve for x
    x = 45,291,601,428.07/242,674.94
  6. Step 6: Final answer
    x = 186,634.85

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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.