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Finding the Fourth Proportional to 375,221.48, 517,800.47 and 205,455.60

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Solution

The fourth proportional to 375,221.48, 517,800.47 and 205,455.60 is: 283,525.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,221.48 : 517,800.47 = 205,455.60 : x
  2. Step 2: Convert to fraction form
    375,221.48/517,800.47 = 205,455.60/x
  3. Step 3: Cross multiply
    375,221.48x = 517,800.47 × 205,455.60
  4. Step 4: Simplify right side
    375,221.48x = 106,385,005,216.85
  5. Step 5: Solve for x
    x = 106,385,005,216.85/375,221.48
  6. Step 6: Final answer
    x = 283,525.90

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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.