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Finding the Fourth Proportional to 388,593.65, 582,969.05 and 163,954.64

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Solution

The fourth proportional to 388,593.65, 582,969.05 and 163,954.64 is: 245,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,593.65 : 582,969.05 = 163,954.64 : x
  2. Step 2: Convert to fraction form
    388,593.65/582,969.05 = 163,954.64/x
  3. Step 3: Cross multiply
    388,593.65x = 582,969.05 × 163,954.64
  4. Step 4: Simplify right side
    388,593.65x = 95,580,480,723.89
  5. Step 5: Solve for x
    x = 95,580,480,723.89/388,593.65
  6. Step 6: Final answer
    x = 245,965.11

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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.