Home / 217,470.38-300,109.66-126,888.62

Finding the Fourth Proportional to 217,470.38, 300,109.66 and 126,888.62

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Solution

The fourth proportional to 217,470.38, 300,109.66 and 126,888.62 is: 175,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,470.38 : 300,109.66 = 126,888.62 : x
  2. Step 2: Convert to fraction form
    217,470.38/300,109.66 = 126,888.62/x
  3. Step 3: Cross multiply
    217,470.38x = 300,109.66 × 126,888.62
  4. Step 4: Simplify right side
    217,470.38x = 38,080,498,788.30
  5. Step 5: Solve for x
    x = 38,080,498,788.30/217,470.38
  6. Step 6: Final answer
    x = 175,106.60

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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.