Home / 218,011.23-300,668.15-141,454.89

Finding the Fourth Proportional to 218,011.23, 300,668.15 and 141,454.89

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Solution

The fourth proportional to 218,011.23, 300,668.15 and 141,454.89 is: 195,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,011.23 : 300,668.15 = 141,454.89 : x
  2. Step 2: Convert to fraction form
    218,011.23/300,668.15 = 141,454.89/x
  3. Step 3: Cross multiply
    218,011.23x = 300,668.15 × 141,454.89
  4. Step 4: Simplify right side
    218,011.23x = 42,530,980,438.39
  5. Step 5: Solve for x
    x = 42,530,980,438.39/218,011.23
  6. Step 6: Final answer
    x = 195,086.19

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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.