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Finding the Fourth Proportional to 286,879.91, 395,888.63 and 159,552.77

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Solution

The fourth proportional to 286,879.91, 395,888.63 and 159,552.77 is: 220,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,879.91 : 395,888.63 = 159,552.77 : x
  2. Step 2: Convert to fraction form
    286,879.91/395,888.63 = 159,552.77/x
  3. Step 3: Cross multiply
    286,879.91x = 395,888.63 × 159,552.77
  4. Step 4: Simplify right side
    286,879.91x = 63,165,124,750.80
  5. Step 5: Solve for x
    x = 63,165,124,750.80/286,879.91
  6. Step 6: Final answer
    x = 220,179.68

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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.