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Finding the Fourth Proportional to 225,501.82, 311,188.58 and 123,529.30

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Solution

The fourth proportional to 225,501.82, 311,188.58 and 123,529.30 is: 170,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,501.82 : 311,188.58 = 123,529.30 : x
  2. Step 2: Convert to fraction form
    225,501.82/311,188.58 = 123,529.30/x
  3. Step 3: Cross multiply
    225,501.82x = 311,188.58 × 123,529.30
  4. Step 4: Simplify right side
    225,501.82x = 38,440,906,837.75
  5. Step 5: Solve for x
    x = 38,440,906,837.75/225,501.82
  6. Step 6: Final answer
    x = 170,468.28

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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.