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Finding the Fourth Proportional to 200,487.40, 300,688.66 and 119,470.29

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Solution

The fourth proportional to 200,487.40, 300,688.66 and 119,470.29 is: 179,180.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,487.40 : 300,688.66 = 119,470.29 : x
  2. Step 2: Convert to fraction form
    200,487.40/300,688.66 = 119,470.29/x
  3. Step 3: Cross multiply
    200,487.40x = 300,688.66 × 119,470.29
  4. Step 4: Simplify right side
    200,487.40x = 35,923,361,451.02
  5. Step 5: Solve for x
    x = 35,923,361,451.02/200,487.40
  6. Step 6: Final answer
    x = 179,180.14

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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.