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Finding the Fourth Proportional to 339,154.92, 468,035.64 and 211,904.28

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Solution

The fourth proportional to 339,154.92, 468,035.64 and 211,904.28 is: 292,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,154.92 : 468,035.64 = 211,904.28 : x
  2. Step 2: Convert to fraction form
    339,154.92/468,035.64 = 211,904.28/x
  3. Step 3: Cross multiply
    339,154.92x = 468,035.64 × 211,904.28
  4. Step 4: Simplify right side
    339,154.92x = 99,178,755,308.54
  5. Step 5: Solve for x
    x = 99,178,755,308.54/339,154.92
  6. Step 6: Final answer
    x = 292,429.06

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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.