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Finding the Fourth Proportional to 373,398.80, 560,033.40 and 136,619.60

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Solution

The fourth proportional to 373,398.80, 560,033.40 and 136,619.60 is: 204,905.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,398.80 : 560,033.40 = 136,619.60 : x
  2. Step 2: Convert to fraction form
    373,398.80/560,033.40 = 136,619.60/x
  3. Step 3: Cross multiply
    373,398.80x = 560,033.40 × 136,619.60
  4. Step 4: Simplify right side
    373,398.80x = 76,511,539,094.64
  5. Step 5: Solve for x
    x = 76,511,539,094.64/373,398.80
  6. Step 6: Final answer
    x = 204,905.69

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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.