Home / 256,724.10-354,265.81-142,000.92

Finding the Fourth Proportional to 256,724.10, 354,265.81 and 142,000.92

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Solution

The fourth proportional to 256,724.10, 354,265.81 and 142,000.92 is: 195,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,724.10 : 354,265.81 = 142,000.92 : x
  2. Step 2: Convert to fraction form
    256,724.10/354,265.81 = 142,000.92/x
  3. Step 3: Cross multiply
    256,724.10x = 354,265.81 × 142,000.92
  4. Step 4: Simplify right side
    256,724.10x = 50,306,071,122.05
  5. Step 5: Solve for x
    x = 50,306,071,122.05/256,724.10
  6. Step 6: Final answer
    x = 195,953.83

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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.