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Finding the Fourth Proportional to 449,458.52, 620,231.10 and 248,250.20

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Solution

The fourth proportional to 449,458.52, 620,231.10 and 248,250.20 is: 342,573.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,458.52 : 620,231.10 = 248,250.20 : x
  2. Step 2: Convert to fraction form
    449,458.52/620,231.10 = 248,250.20/x
  3. Step 3: Cross multiply
    449,458.52x = 620,231.10 × 248,250.20
  4. Step 4: Simplify right side
    449,458.52x = 153,972,494,621.22
  5. Step 5: Solve for x
    x = 153,972,494,621.22/449,458.52
  6. Step 6: Final answer
    x = 342,573.31

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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.