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Finding the Fourth Proportional to 243,370.32, 335,817.84 and 135,926.64

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Solution

The fourth proportional to 243,370.32, 335,817.84 and 135,926.64 is: 187,560.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,370.32 : 335,817.84 = 135,926.64 : x
  2. Step 2: Convert to fraction form
    243,370.32/335,817.84 = 135,926.64/x
  3. Step 3: Cross multiply
    243,370.32x = 335,817.84 × 135,926.64
  4. Step 4: Simplify right side
    243,370.32x = 45,646,590,643.26
  5. Step 5: Solve for x
    x = 45,646,590,643.26/243,370.32
  6. Step 6: Final answer
    x = 187,560.22

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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.