Home / 256,670.20-384,422.10-162,191.80

Finding the Fourth Proportional to 256,670.20, 384,422.10 and 162,191.80

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Solution

The fourth proportional to 256,670.20, 384,422.10 and 162,191.80 is: 242,919.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,670.20 : 384,422.10 = 162,191.80 : x
  2. Step 2: Convert to fraction form
    256,670.20/384,422.10 = 162,191.80/x
  3. Step 3: Cross multiply
    256,670.20x = 384,422.10 × 162,191.80
  4. Step 4: Simplify right side
    256,670.20x = 62,350,112,358.78
  5. Step 5: Solve for x
    x = 62,350,112,358.78/256,670.20
  6. Step 6: Final answer
    x = 242,919.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.