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Finding the Fourth Proportional to 243,424.86, 335,942.07 and 135,995.47

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Solution

The fourth proportional to 243,424.86, 335,942.07 and 135,995.47 is: 187,682.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,424.86 : 335,942.07 = 135,995.47 : x
  2. Step 2: Convert to fraction form
    243,424.86/335,942.07 = 135,995.47/x
  3. Step 3: Cross multiply
    243,424.86x = 335,942.07 × 135,995.47
  4. Step 4: Simplify right side
    243,424.86x = 45,686,598,352.58
  5. Step 5: Solve for x
    x = 45,686,598,352.58/243,424.86
  6. Step 6: Final answer
    x = 187,682.55

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1.5x scale

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.