Home / 256,072.32-353,344.68-142,873.20

Finding the Fourth Proportional to 256,072.32, 353,344.68 and 142,873.20

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Solution

The fourth proportional to 256,072.32, 353,344.68 and 142,873.20 is: 197,145.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,072.32 : 353,344.68 = 142,873.20 : x
  2. Step 2: Convert to fraction form
    256,072.32/353,344.68 = 142,873.20/x
  3. Step 3: Cross multiply
    256,072.32x = 353,344.68 × 142,873.20
  4. Step 4: Simplify right side
    256,072.32x = 50,483,485,134.58
  5. Step 5: Solve for x
    x = 50,483,485,134.58/256,072.32
  6. Step 6: Final answer
    x = 197,145.42

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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.