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Finding the Fourth Proportional to 430,858.40, 646,287.60 and 244,234.40

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Solution

The fourth proportional to 430,858.40, 646,287.60 and 244,234.40 is: 366,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,858.40 : 646,287.60 = 244,234.40 : x
  2. Step 2: Convert to fraction form
    430,858.40/646,287.60 = 244,234.40/x
  3. Step 3: Cross multiply
    430,858.40x = 646,287.60 × 244,234.40
  4. Step 4: Simplify right side
    430,858.40x = 157,845,664,213.44
  5. Step 5: Solve for x
    x = 157,845,664,213.44/430,858.40
  6. Step 6: Final answer
    x = 366,351.60

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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.