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Finding the Fourth Proportional to 373,336.56, 515,215.08 and 203,580

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Solution

The fourth proportional to 373,336.56, 515,215.08 and 203,580 is: 280,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,336.56 : 515,215.08 = 203,580 : x
  2. Step 2: Convert to fraction form
    373,336.56/515,215.08 = 203,580/x
  3. Step 3: Cross multiply
    373,336.56x = 515,215.08 × 203,580
  4. Step 4: Simplify right side
    373,336.56x = 104,887,485,986.40
  5. Step 5: Solve for x
    x = 104,887,485,986.40/373,336.56
  6. Step 6: Final answer
    x = 280,946.20

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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.