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Finding the Fourth Proportional to 403,166.13, 605,123.37 and 203,626.59

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Solution

The fourth proportional to 403,166.13, 605,123.37 and 203,626.59 is: 305,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,166.13 : 605,123.37 = 203,626.59 : x
  2. Step 2: Convert to fraction form
    403,166.13/605,123.37 = 203,626.59/x
  3. Step 3: Cross multiply
    403,166.13x = 605,123.37 × 203,626.59
  4. Step 4: Simplify right side
    403,166.13x = 123,219,208,362.41
  5. Step 5: Solve for x
    x = 123,219,208,362.41/403,166.13
  6. Step 6: Final answer
    x = 305,628.87

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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.