Home / 373,280.05-515,104.27-212,112.73

Finding the Fourth Proportional to 373,280.05, 515,104.27 and 212,112.73

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Solution

The fourth proportional to 373,280.05, 515,104.27 and 212,112.73 is: 292,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,280.05 : 515,104.27 = 212,112.73 : x
  2. Step 2: Convert to fraction form
    373,280.05/515,104.27 = 212,112.73/x
  3. Step 3: Cross multiply
    373,280.05x = 515,104.27 × 212,112.73
  4. Step 4: Simplify right side
    373,280.05x = 109,260,172,944.36
  5. Step 5: Solve for x
    x = 109,260,172,944.36/373,280.05
  6. Step 6: Final answer
    x = 292,702.95

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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.