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Finding the Fourth Proportional to 417,649.18, 576,357.78 and 226,662.79

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Solution

The fourth proportional to 417,649.18, 576,357.78 and 226,662.79 is: 312,795.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,649.18 : 576,357.78 = 226,662.79 : x
  2. Step 2: Convert to fraction form
    417,649.18/576,357.78 = 226,662.79/x
  3. Step 3: Cross multiply
    417,649.18x = 576,357.78 × 226,662.79
  4. Step 4: Simplify right side
    417,649.18x = 130,638,862,453.01
  5. Step 5: Solve for x
    x = 130,638,862,453.01/417,649.18
  6. Step 6: Final answer
    x = 312,795.69

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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.