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Finding the Fourth Proportional to 605,132.16, 907,435.79 and 205,665.67

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Solution

The fourth proportional to 605,132.16, 907,435.79 and 205,665.67 is: 308,409.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,132.16 : 907,435.79 = 205,665.67 : x
  2. Step 2: Convert to fraction form
    605,132.16/907,435.79 = 205,665.67/x
  3. Step 3: Cross multiply
    605,132.16x = 907,435.79 × 205,665.67
  4. Step 4: Simplify right side
    605,132.16x = 186,628,389,732.33
  5. Step 5: Solve for x
    x = 186,628,389,732.33/605,132.16
  6. Step 6: Final answer
    x = 308,409.31

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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.