Home / 347,557.28-479,680.32-220,244.48

Finding the Fourth Proportional to 347,557.28, 479,680.32 and 220,244.48

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Solution

The fourth proportional to 347,557.28, 479,680.32 and 220,244.48 is: 303,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,557.28 : 479,680.32 = 220,244.48 : x
  2. Step 2: Convert to fraction form
    347,557.28/479,680.32 = 220,244.48/x
  3. Step 3: Cross multiply
    347,557.28x = 479,680.32 × 220,244.48
  4. Step 4: Simplify right side
    347,557.28x = 105,646,942,644.63
  5. Step 5: Solve for x
    x = 105,646,942,644.63/347,557.28
  6. Step 6: Final answer
    x = 303,969.87

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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.