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Finding the Fourth Proportional to 248,708.28, 343,200.78 and 146,728.44

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Solution

The fourth proportional to 248,708.28, 343,200.78 and 146,728.44 is: 202,475.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,708.28 : 343,200.78 = 146,728.44 : x
  2. Step 2: Convert to fraction form
    248,708.28/343,200.78 = 146,728.44/x
  3. Step 3: Cross multiply
    248,708.28x = 343,200.78 × 146,728.44
  4. Step 4: Simplify right side
    248,708.28x = 50,357,315,056.18
  5. Step 5: Solve for x
    x = 50,357,315,056.18/248,708.28
  6. Step 6: Final answer
    x = 202,475.43

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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.