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Finding the Fourth Proportional to 270,039.53, 372,661.92 and 161,207.07

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Solution

The fourth proportional to 270,039.53, 372,661.92 and 161,207.07 is: 222,470.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,039.53 : 372,661.92 = 161,207.07 : x
  2. Step 2: Convert to fraction form
    270,039.53/372,661.92 = 161,207.07/x
  3. Step 3: Cross multiply
    270,039.53x = 372,661.92 × 161,207.07
  4. Step 4: Simplify right side
    270,039.53x = 60,075,736,223.77
  5. Step 5: Solve for x
    x = 60,075,736,223.77/270,039.53
  6. Step 6: Final answer
    x = 222,470.16

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Why These Related Problems?

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