Home / 217,643.36-326,079.14-185,729.63

Finding the Fourth Proportional to 217,643.36, 326,079.14 and 185,729.63

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Solution

The fourth proportional to 217,643.36, 326,079.14 and 185,729.63 is: 278,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,643.36 : 326,079.14 = 185,729.63 : x
  2. Step 2: Convert to fraction form
    217,643.36/326,079.14 = 185,729.63/x
  3. Step 3: Cross multiply
    217,643.36x = 326,079.14 × 185,729.63
  4. Step 4: Simplify right side
    217,643.36x = 60,562,555,463.87
  5. Step 5: Solve for x
    x = 60,562,555,463.87/217,643.36
  6. Step 6: Final answer
    x = 278,265.13

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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.