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Finding the Fourth Proportional to 379,246.46, 523,180.22 and 256,783.57

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Solution

The fourth proportional to 379,246.46, 523,180.22 and 256,783.57 is: 354,239.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,246.46 : 523,180.22 = 256,783.57 : x
  2. Step 2: Convert to fraction form
    379,246.46/523,180.22 = 256,783.57/x
  3. Step 3: Cross multiply
    379,246.46x = 523,180.22 × 256,783.57
  4. Step 4: Simplify right side
    379,246.46x = 134,344,082,053.12
  5. Step 5: Solve for x
    x = 134,344,082,053.12/379,246.46
  6. Step 6: Final answer
    x = 354,239.52

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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.