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Finding the Fourth Proportional to 256,880.48, 354,566.39 and 149,471.34

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Solution

The fourth proportional to 256,880.48, 354,566.39 and 149,471.34 is: 206,311.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,880.48 : 354,566.39 = 149,471.34 : x
  2. Step 2: Convert to fraction form
    256,880.48/354,566.39 = 149,471.34/x
  3. Step 3: Cross multiply
    256,880.48x = 354,566.39 × 149,471.34
  4. Step 4: Simplify right side
    256,880.48x = 52,997,512,684.91
  5. Step 5: Solve for x
    x = 52,997,512,684.91/256,880.48
  6. Step 6: Final answer
    x = 206,311.95

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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.