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Finding the Fourth Proportional to 358,319.79, 494,489.24 and 197,174.45

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Solution

The fourth proportional to 358,319.79, 494,489.24 and 197,174.45 is: 272,105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,319.79 : 494,489.24 = 197,174.45 : x
  2. Step 2: Convert to fraction form
    358,319.79/494,489.24 = 197,174.45/x
  3. Step 3: Cross multiply
    358,319.79x = 494,489.24 × 197,174.45
  4. Step 4: Simplify right side
    358,319.79x = 97,500,645,749.50
  5. Step 5: Solve for x
    x = 97,500,645,749.50/358,319.79
  6. Step 6: Final answer
    x = 272,105.11

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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.