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Finding the Fourth Proportional to 212,163.74, 292,793.90 and 127,264.40

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Solution

The fourth proportional to 212,163.74, 292,793.90 and 127,264.40 is: 175,629.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,163.74 : 292,793.90 = 127,264.40 : x
  2. Step 2: Convert to fraction form
    212,163.74/292,793.90 = 127,264.40/x
  3. Step 3: Cross multiply
    212,163.74x = 292,793.90 × 127,264.40
  4. Step 4: Simplify right side
    212,163.74x = 37,262,237,906.87
  5. Step 5: Solve for x
    x = 37,262,237,906.87/212,163.74
  6. Step 6: Final answer
    x = 175,629.63

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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.