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Finding the Fourth Proportional to 373,367.68, 515,259.84 and 203,611.12

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Solution

The fourth proportional to 373,367.68, 515,259.84 and 203,611.12 is: 280,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,367.68 : 515,259.84 = 203,611.12 : x
  2. Step 2: Convert to fraction form
    373,367.68/515,259.84 = 203,611.12/x
  3. Step 3: Cross multiply
    373,367.68x = 515,259.84 × 203,611.12
  4. Step 4: Simplify right side
    373,367.68x = 104,912,633,113.42
  5. Step 5: Solve for x
    x = 104,912,633,113.42/373,367.68
  6. Step 6: Final answer
    x = 280,990.13

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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.