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Finding the Fourth Proportional to 216,769.34, 299,153.32 and 121,270.34

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Solution

The fourth proportional to 216,769.34, 299,153.32 and 121,270.34 is: 167,359.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,769.34 : 299,153.32 = 121,270.34 : x
  2. Step 2: Convert to fraction form
    216,769.34/299,153.32 = 121,270.34/x
  3. Step 3: Cross multiply
    216,769.34x = 299,153.32 × 121,270.34
  4. Step 4: Simplify right side
    216,769.34x = 36,278,424,828.53
  5. Step 5: Solve for x
    x = 36,278,424,828.53/216,769.34
  6. Step 6: Final answer
    x = 167,359.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.