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Finding the Fourth Proportional to 243,353.30, 335,823.98 and 135,924.90

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Solution

The fourth proportional to 243,353.30, 335,823.98 and 135,924.90 is: 187,574.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,353.30 : 335,823.98 = 135,924.90 : x
  2. Step 2: Convert to fraction form
    243,353.30/335,823.98 = 135,924.90/x
  3. Step 3: Cross multiply
    243,353.30x = 335,823.98 × 135,924.90
  4. Step 4: Simplify right side
    243,353.30x = 45,646,840,899.10
  5. Step 5: Solve for x
    x = 45,646,840,899.10/243,353.30
  6. Step 6: Final answer
    x = 187,574.37

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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.