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Finding the Fourth Proportional to 225,496.79, 311,172.28 and 123,501.94

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Solution

The fourth proportional to 225,496.79, 311,172.28 and 123,501.94 is: 170,425.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,496.79 : 311,172.28 = 123,501.94 : x
  2. Step 2: Convert to fraction form
    225,496.79/311,172.28 = 123,501.94/x
  3. Step 3: Cross multiply
    225,496.79x = 311,172.28 × 123,501.94
  4. Step 4: Simplify right side
    225,496.79x = 38,430,379,167.54
  5. Step 5: Solve for x
    x = 38,430,379,167.54/225,496.79
  6. Step 6: Final answer
    x = 170,425.39

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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.