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Finding the Fourth Proportional to 242,448.96, 334,579.20 and 135,028.32

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Solution

The fourth proportional to 242,448.96, 334,579.20 and 135,028.32 is: 186,338.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,448.96 : 334,579.20 = 135,028.32 : x
  2. Step 2: Convert to fraction form
    242,448.96/334,579.20 = 135,028.32/x
  3. Step 3: Cross multiply
    242,448.96x = 334,579.20 × 135,028.32
  4. Step 4: Simplify right side
    242,448.96x = 45,177,667,282.94
  5. Step 5: Solve for x
    x = 45,177,667,282.94/242,448.96
  6. Step 6: Final answer
    x = 186,338.88

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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.