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Finding the Fourth Proportional to 286,807.70, 395,794.96 and 159,480.56

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Solution

The fourth proportional to 286,807.70, 395,794.96 and 159,480.56 is: 220,083.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,807.70 : 395,794.96 = 159,480.56 : x
  2. Step 2: Convert to fraction form
    286,807.70/395,794.96 = 159,480.56/x
  3. Step 3: Cross multiply
    286,807.70x = 395,794.96 × 159,480.56
  4. Step 4: Simplify right side
    286,807.70x = 63,121,602,456.76
  5. Step 5: Solve for x
    x = 63,121,602,456.76/286,807.70
  6. Step 6: Final answer
    x = 220,083.36

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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.