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Finding the Fourth Proportional to 256,530.48, 382,917.07 and 226,230.20

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Solution

The fourth proportional to 256,530.48, 382,917.07 and 226,230.20 is: 337,688.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,530.48 : 382,917.07 = 226,230.20 : x
  2. Step 2: Convert to fraction form
    256,530.48/382,917.07 = 226,230.20/x
  3. Step 3: Cross multiply
    256,530.48x = 382,917.07 × 226,230.20
  4. Step 4: Simplify right side
    256,530.48x = 86,627,405,133.66
  5. Step 5: Solve for x
    x = 86,627,405,133.66/256,530.48
  6. Step 6: Final answer
    x = 337,688.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.