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Finding the Fourth Proportional to 286,620.76, 395,553.02 and 159,304.42

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Solution

The fourth proportional to 286,620.76, 395,553.02 and 159,304.42 is: 219,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,620.76 : 395,553.02 = 159,304.42 : x
  2. Step 2: Convert to fraction form
    286,620.76/395,553.02 = 159,304.42/x
  3. Step 3: Cross multiply
    286,620.76x = 395,553.02 × 159,304.42
  4. Step 4: Simplify right side
    286,620.76x = 63,013,344,430.35
  5. Step 5: Solve for x
    x = 63,013,344,430.35/286,620.76
  6. Step 6: Final answer
    x = 219,849.20

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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.