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Finding the Fourth Proportional to 242,914.51, 335,223.63 and 135,491.50

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Solution

The fourth proportional to 242,914.51, 335,223.63 and 135,491.50 is: 186,979.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,914.51 : 335,223.63 = 135,491.50 : x
  2. Step 2: Convert to fraction form
    242,914.51/335,223.63 = 135,491.50/x
  3. Step 3: Cross multiply
    242,914.51x = 335,223.63 × 135,491.50
  4. Step 4: Simplify right side
    242,914.51x = 45,419,952,464.15
  5. Step 5: Solve for x
    x = 45,419,952,464.15/242,914.51
  6. Step 6: Final answer
    x = 186,979.17

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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.