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Finding the Fourth Proportional to 286,868.52, 395,889.48 and 159,553.32

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Solution

The fourth proportional to 286,868.52, 395,889.48 and 159,553.32 is: 220,189.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,868.52 : 395,889.48 = 159,553.32 : x
  2. Step 2: Convert to fraction form
    286,868.52/395,889.48 = 159,553.32/x
  3. Step 3: Cross multiply
    286,868.52x = 395,889.48 × 159,553.32
  4. Step 4: Simplify right side
    286,868.52x = 63,165,480,887.07
  5. Step 5: Solve for x
    x = 63,165,480,887.07/286,868.52
  6. Step 6: Final answer
    x = 220,189.66

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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.