Home / 305,822.68-422,032.38-171,685.72

Finding the Fourth Proportional to 305,822.68, 422,032.38 and 171,685.72

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Solution

The fourth proportional to 305,822.68, 422,032.38 and 171,685.72 is: 236,924.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,822.68 : 422,032.38 = 171,685.72 : x
  2. Step 2: Convert to fraction form
    305,822.68/422,032.38 = 171,685.72/x
  3. Step 3: Cross multiply
    305,822.68x = 422,032.38 × 171,685.72
  4. Step 4: Simplify right side
    305,822.68x = 72,456,933,023.61
  5. Step 5: Solve for x
    x = 72,456,933,023.61/305,822.68
  6. Step 6: Final answer
    x = 236,924.66

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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.