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Finding the Fourth Proportional to 286,626.99, 395,542.40 and 159,299.85

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Solution

The fourth proportional to 286,626.99, 395,542.40 and 159,299.85 is: 219,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,626.99 : 395,542.40 = 159,299.85 : x
  2. Step 2: Convert to fraction form
    286,626.99/395,542.40 = 159,299.85/x
  3. Step 3: Cross multiply
    286,626.99x = 395,542.40 × 159,299.85
  4. Step 4: Simplify right side
    286,626.99x = 63,009,844,192.14
  5. Step 5: Solve for x
    x = 63,009,844,192.14/286,626.99
  6. Step 6: Final answer
    x = 219,832.21

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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.