Home / 256,631.20-384,363.60-162,152.80

Finding the Fourth Proportional to 256,631.20, 384,363.60 and 162,152.80

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Solution

The fourth proportional to 256,631.20, 384,363.60 and 162,152.80 is: 242,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,631.20 : 384,363.60 = 162,152.80 : x
  2. Step 2: Convert to fraction form
    256,631.20/384,363.60 = 162,152.80/x
  3. Step 3: Cross multiply
    256,631.20x = 384,363.60 × 162,152.80
  4. Step 4: Simplify right side
    256,631.20x = 62,325,633,958.08
  5. Step 5: Solve for x
    x = 62,325,633,958.08/256,631.20
  6. Step 6: Final answer
    x = 242,860.70

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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.