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Finding the Fourth Proportional to 355,563.62, 490,801.35 and 204,720.74

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Solution

The fourth proportional to 355,563.62, 490,801.35 and 204,720.74 is: 282,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,563.62 : 490,801.35 = 204,720.74 : x
  2. Step 2: Convert to fraction form
    355,563.62/490,801.35 = 204,720.74/x
  3. Step 3: Cross multiply
    355,563.62x = 490,801.35 × 204,720.74
  4. Step 4: Simplify right side
    355,563.62x = 100,477,215,565.00
  5. Step 5: Solve for x
    x = 100,477,215,565.00/355,563.62
  6. Step 6: Final answer
    x = 282,585.76

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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.