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Finding the Fourth Proportional to 256,458.60, 384,687.90 and 244,211.40

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Solution

The fourth proportional to 256,458.60, 384,687.90 and 244,211.40 is: 366,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,458.60 : 384,687.90 = 244,211.40 : x
  2. Step 2: Convert to fraction form
    256,458.60/384,687.90 = 244,211.40/x
  3. Step 3: Cross multiply
    256,458.60x = 384,687.90 × 244,211.40
  4. Step 4: Simplify right side
    256,458.60x = 93,945,170,622.06
  5. Step 5: Solve for x
    x = 93,945,170,622.06/256,458.60
  6. Step 6: Final answer
    x = 366,317.10

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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.