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Finding the Fourth Proportional to 201,918.80, 302,550.15 and 168,457.70

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Solution

The fourth proportional to 201,918.80, 302,550.15 and 168,457.70 is: 252,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,918.80 : 302,550.15 = 168,457.70 : x
  2. Step 2: Convert to fraction form
    201,918.80/302,550.15 = 168,457.70/x
  3. Step 3: Cross multiply
    201,918.80x = 302,550.15 × 168,457.70
  4. Step 4: Simplify right side
    201,918.80x = 50,966,902,403.66
  5. Step 5: Solve for x
    x = 50,966,902,403.66/201,918.80
  6. Step 6: Final answer
    x = 252,412.86

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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.