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Finding the Fourth Proportional to 242,998.81, 335,337.43 and 135,568.91

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Solution

The fourth proportional to 242,998.81, 335,337.43 and 135,568.91 is: 187,084.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,998.81 : 335,337.43 = 135,568.91 : x
  2. Step 2: Convert to fraction form
    242,998.81/335,337.43 = 135,568.91/x
  3. Step 3: Cross multiply
    242,998.81x = 335,337.43 × 135,568.91
  4. Step 4: Simplify right side
    242,998.81x = 45,461,329,867.30
  5. Step 5: Solve for x
    x = 45,461,329,867.30/242,998.81
  6. Step 6: Final answer
    x = 187,084.58

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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.