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Finding the Fourth Proportional to 373,651.36, 515,634.60 and 203,888.32

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Solution

The fourth proportional to 373,651.36, 515,634.60 and 203,888.32 is: 281,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,651.36 : 515,634.60 = 203,888.32 : x
  2. Step 2: Convert to fraction form
    373,651.36/515,634.60 = 203,888.32/x
  3. Step 3: Cross multiply
    373,651.36x = 515,634.60 × 203,888.32
  4. Step 4: Simplify right side
    373,651.36x = 105,131,872,327.87
  5. Step 5: Solve for x
    x = 105,131,872,327.87/373,651.36
  6. Step 6: Final answer
    x = 281,363.55

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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.