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Finding the Fourth Proportional to 355,712.04, 490,898.36 and 204,857.64

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Solution

The fourth proportional to 355,712.04, 490,898.36 and 204,857.64 is: 282,712.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,712.04 : 490,898.36 = 204,857.64 : x
  2. Step 2: Convert to fraction form
    355,712.04/490,898.36 = 204,857.64/x
  3. Step 3: Cross multiply
    355,712.04x = 490,898.36 × 204,857.64
  4. Step 4: Simplify right side
    355,712.04x = 100,564,279,509.47
  5. Step 5: Solve for x
    x = 100,564,279,509.47/355,712.04
  6. Step 6: Final answer
    x = 282,712.61

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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.