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Finding the Fourth Proportional to 286,404.48, 395,238.28 and 159,091.92

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Solution

The fourth proportional to 286,404.48, 395,238.28 and 159,091.92 is: 219,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,404.48 : 395,238.28 = 159,091.92 : x
  2. Step 2: Convert to fraction form
    286,404.48/395,238.28 = 159,091.92/x
  3. Step 3: Cross multiply
    286,404.48x = 395,238.28 × 159,091.92
  4. Step 4: Simplify right side
    286,404.48x = 62,879,216,822.70
  5. Step 5: Solve for x
    x = 62,879,216,822.70/286,404.48
  6. Step 6: Final answer
    x = 219,546.90

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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.