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Finding the Fourth Proportional to 407,619.56, 611,496.18 and 167,668.43

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Solution

The fourth proportional to 407,619.56, 611,496.18 and 167,668.43 is: 251,530.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,619.56 : 611,496.18 = 167,668.43 : x
  2. Step 2: Convert to fraction form
    407,619.56/611,496.18 = 167,668.43/x
  3. Step 3: Cross multiply
    407,619.56x = 611,496.18 × 167,668.43
  4. Step 4: Simplify right side
    407,619.56x = 102,528,601,394.12
  5. Step 5: Solve for x
    x = 102,528,601,394.12/407,619.56
  6. Step 6: Final answer
    x = 251,530.13

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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.