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Finding the Fourth Proportional to 375,221.68, 517,800.78 and 205,455.82

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Solution

The fourth proportional to 375,221.68, 517,800.78 and 205,455.82 is: 283,526.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,221.68 : 517,800.78 = 205,455.82 : x
  2. Step 2: Convert to fraction form
    375,221.68/517,800.78 = 205,455.82/x
  3. Step 3: Cross multiply
    375,221.68x = 517,800.78 × 205,455.82
  4. Step 4: Simplify right side
    375,221.68x = 106,385,183,851.54
  5. Step 5: Solve for x
    x = 106,385,183,851.54/375,221.68
  6. Step 6: Final answer
    x = 283,526.22

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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.