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Finding the Fourth Proportional to 256,134.30, 359,112.90 and 256,134.30

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Solution

The fourth proportional to 256,134.30, 359,112.90 and 256,134.30 is: 359,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,134.30 : 359,112.90 = 256,134.30 : x
  2. Step 2: Convert to fraction form
    256,134.30/359,112.90 = 256,134.30/x
  3. Step 3: Cross multiply
    256,134.30x = 359,112.90 × 256,134.30
  4. Step 4: Simplify right side
    256,134.30x = 91,981,131,262.47
  5. Step 5: Solve for x
    x = 91,981,131,262.47/256,134.30
  6. Step 6: Final answer
    x = 359,112.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.