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Finding the Fourth Proportional to 351,635.92, 485,258.82 and 190,490.56

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Solution

The fourth proportional to 351,635.92, 485,258.82 and 190,490.56 is: 262,877.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,635.92 : 485,258.82 = 190,490.56 : x
  2. Step 2: Convert to fraction form
    351,635.92/485,258.82 = 190,490.56/x
  3. Step 3: Cross multiply
    351,635.92x = 485,258.82 × 190,490.56
  4. Step 4: Simplify right side
    351,635.92x = 92,437,224,366.74
  5. Step 5: Solve for x
    x = 92,437,224,366.74/351,635.92
  6. Step 6: Final answer
    x = 262,877.65

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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.