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Finding the Fourth Proportional to 218,668.35, 301,768.16 and 123,169.35

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Solution

The fourth proportional to 218,668.35, 301,768.16 and 123,169.35 is: 169,976.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,668.35 : 301,768.16 = 123,169.35 : x
  2. Step 2: Convert to fraction form
    218,668.35/301,768.16 = 123,169.35/x
  3. Step 3: Cross multiply
    218,668.35x = 301,768.16 × 123,169.35
  4. Step 4: Simplify right side
    218,668.35x = 37,168,587,502.05
  5. Step 5: Solve for x
    x = 37,168,587,502.05/218,668.35
  6. Step 6: Final answer
    x = 169,976.99

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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.