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Finding the Fourth Proportional to 373,903.76, 515,999.40 and 204,150.80

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Solution

The fourth proportional to 373,903.76, 515,999.40 and 204,150.80 is: 281,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,903.76 : 515,999.40 = 204,150.80 : x
  2. Step 2: Convert to fraction form
    373,903.76/515,999.40 = 204,150.80/x
  3. Step 3: Cross multiply
    373,903.76x = 515,999.40 × 204,150.80
  4. Step 4: Simplify right side
    373,903.76x = 105,341,690,309.52
  5. Step 5: Solve for x
    x = 105,341,690,309.52/373,903.76
  6. Step 6: Final answer
    x = 281,734.77

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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.