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Finding the Fourth Proportional to 243,346.52, 335,814.66 and 135,918.08

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Solution

The fourth proportional to 243,346.52, 335,814.66 and 135,918.08 is: 187,564.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,346.52 : 335,814.66 = 135,918.08 : x
  2. Step 2: Convert to fraction form
    243,346.52/335,814.66 = 135,918.08/x
  3. Step 3: Cross multiply
    243,346.52x = 335,814.66 × 135,918.08
  4. Step 4: Simplify right side
    243,346.52x = 45,643,283,823.05
  5. Step 5: Solve for x
    x = 45,643,283,823.05/243,346.52
  6. Step 6: Final answer
    x = 187,564.97

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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.