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Finding the Fourth Proportional to 348,314.31, 480,469.61 and 219,047.75

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Solution

The fourth proportional to 348,314.31, 480,469.61 and 219,047.75 is: 302,157.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,314.31 : 480,469.61 = 219,047.75 : x
  2. Step 2: Convert to fraction form
    348,314.31/480,469.61 = 219,047.75/x
  3. Step 3: Cross multiply
    348,314.31x = 480,469.61 × 219,047.75
  4. Step 4: Simplify right side
    348,314.31x = 105,245,783,516.29
  5. Step 5: Solve for x
    x = 105,245,783,516.29/348,314.31
  6. Step 6: Final answer
    x = 302,157.51

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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.