Home / 217,005.78-325,198.50-122,036.63

Finding the Fourth Proportional to 217,005.78, 325,198.50 and 122,036.63

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Solution

The fourth proportional to 217,005.78, 325,198.50 and 122,036.63 is: 182,880.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,005.78 : 325,198.50 = 122,036.63 : x
  2. Step 2: Convert to fraction form
    217,005.78/325,198.50 = 122,036.63/x
  3. Step 3: Cross multiply
    217,005.78x = 325,198.50 × 122,036.63
  4. Step 4: Simplify right side
    217,005.78x = 39,686,126,937.43
  5. Step 5: Solve for x
    x = 39,686,126,937.43/217,005.78
  6. Step 6: Final answer
    x = 182,880.50

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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.