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Finding the Fourth Proportional to 373,378.29, 515,248.34 and 203,608.77

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Solution

The fourth proportional to 373,378.29, 515,248.34 and 203,608.77 is: 280,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,378.29 : 515,248.34 = 203,608.77 : x
  2. Step 2: Convert to fraction form
    373,378.29/515,248.34 = 203,608.77/x
  3. Step 3: Cross multiply
    373,378.29x = 515,248.34 × 203,608.77
  4. Step 4: Simplify right side
    373,378.29x = 104,909,079,733.90
  5. Step 5: Solve for x
    x = 104,909,079,733.90/373,378.29
  6. Step 6: Final answer
    x = 280,972.63

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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.