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Finding the Fourth Proportional to 358,489.75, 494,748.81 and 197,377.51

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Solution

The fourth proportional to 358,489.75, 494,748.81 and 197,377.51 is: 272,399.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,489.75 : 494,748.81 = 197,377.51 : x
  2. Step 2: Convert to fraction form
    358,489.75/494,748.81 = 197,377.51/x
  3. Step 3: Cross multiply
    358,489.75x = 494,748.81 × 197,377.51
  4. Step 4: Simplify right side
    358,489.75x = 97,652,288,193.26
  5. Step 5: Solve for x
    x = 97,652,288,193.26/358,489.75
  6. Step 6: Final answer
    x = 272,399.11

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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.