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Finding the Fourth Proportional to 561,636, 842,601.52 and 201,843.16

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Solution

The fourth proportional to 561,636, 842,601.52 and 201,843.16 is: 302,817.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,636 : 842,601.52 = 201,843.16 : x
  2. Step 2: Convert to fraction form
    561,636/842,601.52 = 201,843.16/x
  3. Step 3: Cross multiply
    561,636x = 842,601.52 × 201,843.16
  4. Step 4: Simplify right side
    561,636x = 170,073,353,417.60
  5. Step 5: Solve for x
    x = 170,073,353,417.60/561,636
  6. Step 6: Final answer
    x = 302,817.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.