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Finding the Fourth Proportional to 355,885.29, 491,121.09 and 194,740.29

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Solution

The fourth proportional to 355,885.29, 491,121.09 and 194,740.29 is: 268,741.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,885.29 : 491,121.09 = 194,740.29 : x
  2. Step 2: Convert to fraction form
    355,885.29/491,121.09 = 194,740.29/x
  3. Step 3: Cross multiply
    355,885.29x = 491,121.09 × 194,740.29
  4. Step 4: Simplify right side
    355,885.29x = 95,641,063,491.72
  5. Step 5: Solve for x
    x = 95,641,063,491.72/355,885.29
  6. Step 6: Final answer
    x = 268,741.27

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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.