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Finding the Fourth Proportional to 605,228.49, 907,580.16 and 205,761.96

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Solution

The fourth proportional to 605,228.49, 907,580.16 and 205,761.96 is: 308,553.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,228.49 : 907,580.16 = 205,761.96 : x
  2. Step 2: Convert to fraction form
    605,228.49/907,580.16 = 205,761.96/x
  3. Step 3: Cross multiply
    605,228.49x = 907,580.16 × 205,761.96
  4. Step 4: Simplify right side
    605,228.49x = 186,745,472,578.71
  5. Step 5: Solve for x
    x = 186,745,472,578.71/605,228.49
  6. Step 6: Final answer
    x = 308,553.67

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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.