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Finding the Fourth Proportional to 243,393.41, 335,849.54 and 135,949.74

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Solution

The fourth proportional to 243,393.41, 335,849.54 and 135,949.74 is: 187,592.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,393.41 : 335,849.54 = 135,949.74 : x
  2. Step 2: Convert to fraction form
    243,393.41/335,849.54 = 135,949.74/x
  3. Step 3: Cross multiply
    243,393.41x = 335,849.54 × 135,949.74
  4. Step 4: Simplify right side
    243,393.41x = 45,658,656,962.37
  5. Step 5: Solve for x
    x = 45,658,656,962.37/243,393.41
  6. Step 6: Final answer
    x = 187,592.01

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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.