Home / 217,536.69-326,291.87-129,351.38

Finding the Fourth Proportional to 217,536.69, 326,291.87 and 129,351.38

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Solution

The fourth proportional to 217,536.69, 326,291.87 and 129,351.38 is: 194,019.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,536.69 : 326,291.87 = 129,351.38 : x
  2. Step 2: Convert to fraction form
    217,536.69/326,291.87 = 129,351.38/x
  3. Step 3: Cross multiply
    217,536.69x = 326,291.87 × 129,351.38
  4. Step 4: Simplify right side
    217,536.69x = 42,206,304,806.39
  5. Step 5: Solve for x
    x = 42,206,304,806.39/217,536.69
  6. Step 6: Final answer
    x = 194,019.25

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1.5x scale

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.