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Finding the Fourth Proportional to 286,335.60, 395,126.28 and 159,003.60

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Solution

The fourth proportional to 286,335.60, 395,126.28 and 159,003.60 is: 219,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,335.60 : 395,126.28 = 159,003.60 : x
  2. Step 2: Convert to fraction form
    286,335.60/395,126.28 = 159,003.60/x
  3. Step 3: Cross multiply
    286,335.60x = 395,126.28 × 159,003.60
  4. Step 4: Simplify right side
    286,335.60x = 62,826,500,974.61
  5. Step 5: Solve for x
    x = 62,826,500,974.61/286,335.60
  6. Step 6: Final answer
    x = 219,415.61

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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.