Home / 226,378.40-312,400.37-123,011.69

Finding the Fourth Proportional to 226,378.40, 312,400.37 and 123,011.69

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Solution

The fourth proportional to 226,378.40, 312,400.37 and 123,011.69 is: 169,755.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,378.40 : 312,400.37 = 123,011.69 : x
  2. Step 2: Convert to fraction form
    226,378.40/312,400.37 = 123,011.69/x
  3. Step 3: Cross multiply
    226,378.40x = 312,400.37 × 123,011.69
  4. Step 4: Simplify right side
    226,378.40x = 38,428,896,855.27
  5. Step 5: Solve for x
    x = 38,428,896,855.27/226,378.40
  6. Step 6: Final answer
    x = 169,755.14

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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.