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Finding the Fourth Proportional to 355,958.36, 491,277.72 and 202,996.88

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Solution

The fourth proportional to 355,958.36, 491,277.72 and 202,996.88 is: 280,167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,958.36 : 491,277.72 = 202,996.88 : x
  2. Step 2: Convert to fraction form
    355,958.36/491,277.72 = 202,996.88/x
  3. Step 3: Cross multiply
    355,958.36x = 491,277.72 × 202,996.88
  4. Step 4: Simplify right side
    355,958.36x = 99,727,844,373.51
  5. Step 5: Solve for x
    x = 99,727,844,373.51/355,958.36
  6. Step 6: Final answer
    x = 280,167.16

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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.