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Finding the Fourth Proportional to 373,906.80, 560,795.40 and 137,127.60

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Solution

The fourth proportional to 373,906.80, 560,795.40 and 137,127.60 is: 205,667.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,906.80 : 560,795.40 = 137,127.60 : x
  2. Step 2: Convert to fraction form
    373,906.80/560,795.40 = 137,127.60/x
  3. Step 3: Cross multiply
    373,906.80x = 560,795.40 × 137,127.60
  4. Step 4: Simplify right side
    373,906.80x = 76,900,527,293.04
  5. Step 5: Solve for x
    x = 76,900,527,293.04/373,906.80
  6. Step 6: Final answer
    x = 205,667.64

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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.