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Finding the Fourth Proportional to 256,754.28, 354,314.28 and 142,029.93

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Solution

The fourth proportional to 256,754.28, 354,314.28 and 142,029.93 is: 195,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,754.28 : 354,314.28 = 142,029.93 : x
  2. Step 2: Convert to fraction form
    256,754.28/354,314.28 = 142,029.93/x
  3. Step 3: Cross multiply
    256,754.28x = 354,314.28 × 142,029.93
  4. Step 4: Simplify right side
    256,754.28x = 50,323,232,386.40
  5. Step 5: Solve for x
    x = 50,323,232,386.40/256,754.28
  6. Step 6: Final answer
    x = 195,997.64

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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.