Home / 225,835.17-311,658.24-127,710.55

Finding the Fourth Proportional to 225,835.17, 311,658.24 and 127,710.55

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Solution

The fourth proportional to 225,835.17, 311,658.24 and 127,710.55 is: 176,243.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,835.17 : 311,658.24 = 127,710.55 : x
  2. Step 2: Convert to fraction form
    225,835.17/311,658.24 = 127,710.55/x
  3. Step 3: Cross multiply
    225,835.17x = 311,658.24 × 127,710.55
  4. Step 4: Simplify right side
    225,835.17x = 39,802,045,242.43
  5. Step 5: Solve for x
    x = 39,802,045,242.43/225,835.17
  6. Step 6: Final answer
    x = 176,243.79

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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.