Home / 225,867.52-311,710.08-136,472.32

Finding the Fourth Proportional to 225,867.52, 311,710.08 and 136,472.32

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Solution

The fourth proportional to 225,867.52, 311,710.08 and 136,472.32 is: 188,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,867.52 : 311,710.08 = 136,472.32 : x
  2. Step 2: Convert to fraction form
    225,867.52/311,710.08 = 136,472.32/x
  3. Step 3: Cross multiply
    225,867.52x = 311,710.08 × 136,472.32
  4. Step 4: Simplify right side
    225,867.52x = 42,539,797,784.99
  5. Step 5: Solve for x
    x = 42,539,797,784.99/225,867.52
  6. Step 6: Final answer
    x = 188,339.60

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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.