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Finding the Fourth Proportional to 449,282.64, 619,993.80 and 248,074.32

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Solution

The fourth proportional to 449,282.64, 619,993.80 and 248,074.32 is: 342,333.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,282.64 : 619,993.80 = 248,074.32 : x
  2. Step 2: Convert to fraction form
    449,282.64/619,993.80 = 248,074.32/x
  3. Step 3: Cross multiply
    449,282.64x = 619,993.80 × 248,074.32
  4. Step 4: Simplify right side
    449,282.64x = 153,804,540,339.22
  5. Step 5: Solve for x
    x = 153,804,540,339.22/449,282.64
  6. Step 6: Final answer
    x = 342,333.59

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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.