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Finding the Fourth Proportional to 220,172.65, 303,839.81 and 119,570.65

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Solution

The fourth proportional to 220,172.65, 303,839.81 and 119,570.65 is: 165,008.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,172.65 : 303,839.81 = 119,570.65 : x
  2. Step 2: Convert to fraction form
    220,172.65/303,839.81 = 119,570.65/x
  3. Step 3: Cross multiply
    220,172.65x = 303,839.81 × 119,570.65
  4. Step 4: Simplify right side
    220,172.65x = 36,330,322,668.51
  5. Step 5: Solve for x
    x = 36,330,322,668.51/220,172.65
  6. Step 6: Final answer
    x = 165,008.34

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1.5x scale

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.