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Finding the Fourth Proportional to 243,302.37, 335,762.31 and 135,872.51

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Solution

The fourth proportional to 243,302.37, 335,762.31 and 135,872.51 is: 187,506.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,302.37 : 335,762.31 = 135,872.51 : x
  2. Step 2: Convert to fraction form
    243,302.37/335,762.31 = 135,872.51/x
  3. Step 3: Cross multiply
    243,302.37x = 335,762.31 × 135,872.51
  4. Step 4: Simplify right side
    243,302.37x = 45,620,866,144.29
  5. Step 5: Solve for x
    x = 45,620,866,144.29/243,302.37
  6. Step 6: Final answer
    x = 187,506.87

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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.