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Finding the Fourth Proportional to 557,876.50, 836,324.18 and 221,153.68

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Solution

The fourth proportional to 557,876.50, 836,324.18 and 221,153.68 is: 331,536.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,876.50 : 836,324.18 = 221,153.68 : x
  2. Step 2: Convert to fraction form
    557,876.50/836,324.18 = 221,153.68/x
  3. Step 3: Cross multiply
    557,876.50x = 836,324.18 × 221,153.68
  4. Step 4: Simplify right side
    557,876.50x = 184,956,172,092.94
  5. Step 5: Solve for x
    x = 184,956,172,092.94/557,876.50
  6. Step 6: Final answer
    x = 331,536.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.