Home / 217,528.82-326,280.06-129,343.51

Finding the Fourth Proportional to 217,528.82, 326,280.06 and 129,343.51

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Solution

The fourth proportional to 217,528.82, 326,280.06 and 129,343.51 is: 194,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,528.82 : 326,280.06 = 129,343.51 : x
  2. Step 2: Convert to fraction form
    217,528.82/326,280.06 = 129,343.51/x
  3. Step 3: Cross multiply
    217,528.82x = 326,280.06 × 129,343.51
  4. Step 4: Simplify right side
    217,528.82x = 42,202,207,387.71
  5. Step 5: Solve for x
    x = 42,202,207,387.71/217,528.82
  6. Step 6: Final answer
    x = 194,007.43

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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.