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Finding the Fourth Proportional to 375,212.45, 517,788.05 and 205,446.58

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Solution

The fourth proportional to 375,212.45, 517,788.05 and 205,446.58 is: 283,513.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,212.45 : 517,788.05 = 205,446.58 : x
  2. Step 2: Convert to fraction form
    375,212.45/517,788.05 = 205,446.58/x
  3. Step 3: Cross multiply
    375,212.45x = 517,788.05 × 205,446.58
  4. Step 4: Simplify right side
    375,212.45x = 106,377,781,715.67
  5. Step 5: Solve for x
    x = 106,377,781,715.67/375,212.45
  6. Step 6: Final answer
    x = 283,513.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.