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Finding the Fourth Proportional to 355,700.96, 490,871.14 and 194,552.55

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Solution

The fourth proportional to 355,700.96, 490,871.14 and 194,552.55 is: 268,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,700.96 : 490,871.14 = 194,552.55 : x
  2. Step 2: Convert to fraction form
    355,700.96/490,871.14 = 194,552.55/x
  3. Step 3: Cross multiply
    355,700.96x = 490,871.14 × 194,552.55
  4. Step 4: Simplify right side
    355,700.96x = 95,500,231,522.03
  5. Step 5: Solve for x
    x = 95,500,231,522.03/355,700.96
  6. Step 6: Final answer
    x = 268,484.60

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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.