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Finding the Fourth Proportional to 243,497.44, 365,351.76 and 85,838.56

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Solution

The fourth proportional to 243,497.44, 365,351.76 and 85,838.56 is: 128,795.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,497.44 : 365,351.76 = 85,838.56 : x
  2. Step 2: Convert to fraction form
    243,497.44/365,351.76 = 85,838.56/x
  3. Step 3: Cross multiply
    243,497.44x = 365,351.76 × 85,838.56
  4. Step 4: Simplify right side
    243,497.44x = 31,361,268,971.87
  5. Step 5: Solve for x
    x = 31,361,268,971.87/243,497.44
  6. Step 6: Final answer
    x = 128,795.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.