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Finding the Fourth Proportional to 256,600.89, 384,902.73 and 69,612.39

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Solution

The fourth proportional to 256,600.89, 384,902.73 and 69,612.39 is: 104,418.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,600.89 : 384,902.73 = 69,612.39 : x
  2. Step 2: Convert to fraction form
    256,600.89/384,902.73 = 69,612.39/x
  3. Step 3: Cross multiply
    256,600.89x = 384,902.73 × 69,612.39
  4. Step 4: Simplify right side
    256,600.89x = 26,793,998,952.82
  5. Step 5: Solve for x
    x = 26,793,998,952.82/256,600.89
  6. Step 6: Final answer
    x = 104,418.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.