Home / 256,890.48-354,500.85-142,162.21

Finding the Fourth Proportional to 256,890.48, 354,500.85 and 142,162.21

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Solution

The fourth proportional to 256,890.48, 354,500.85 and 142,162.21 is: 196,179.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,890.48 : 354,500.85 = 142,162.21 : x
  2. Step 2: Convert to fraction form
    256,890.48/354,500.85 = 142,162.21/x
  3. Step 3: Cross multiply
    256,890.48x = 354,500.85 × 142,162.21
  4. Step 4: Simplify right side
    256,890.48x = 50,396,624,282.88
  5. Step 5: Solve for x
    x = 50,396,624,282.88/256,890.48
  6. Step 6: Final answer
    x = 196,179.42

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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.