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Finding the Fourth Proportional to 225,453.04, 311,054.76 and 129,946.76

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Solution

The fourth proportional to 225,453.04, 311,054.76 and 129,946.76 is: 179,285.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,453.04 : 311,054.76 = 129,946.76 : x
  2. Step 2: Convert to fraction form
    225,453.04/311,054.76 = 129,946.76/x
  3. Step 3: Cross multiply
    225,453.04x = 311,054.76 × 129,946.76
  4. Step 4: Simplify right side
    225,453.04x = 40,420,558,244.58
  5. Step 5: Solve for x
    x = 40,420,558,244.58/225,453.04
  6. Step 6: Final answer
    x = 179,285.93

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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.