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Finding the Fourth Proportional to 225,700.30, 311,499.57 and 130,188.34

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Solution

The fourth proportional to 225,700.30, 311,499.57 and 130,188.34 is: 179,679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,700.30 : 311,499.57 = 130,188.34 : x
  2. Step 2: Convert to fraction form
    225,700.30/311,499.57 = 130,188.34/x
  3. Step 3: Cross multiply
    225,700.30x = 311,499.57 × 130,188.34
  4. Step 4: Simplify right side
    225,700.30x = 40,553,611,929.01
  5. Step 5: Solve for x
    x = 40,553,611,929.01/225,700.30
  6. Step 6: Final answer
    x = 179,679.03

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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.