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Finding the Fourth Proportional to 225,493.30, 311,168.67 and 123,513.49

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Solution

The fourth proportional to 225,493.30, 311,168.67 and 123,513.49 is: 170,442.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,493.30 : 311,168.67 = 123,513.49 : x
  2. Step 2: Convert to fraction form
    225,493.30/311,168.67 = 123,513.49/x
  3. Step 3: Cross multiply
    225,493.30x = 311,168.67 × 123,513.49
  4. Step 4: Simplify right side
    225,493.30x = 38,433,528,410.36
  5. Step 5: Solve for x
    x = 38,433,528,410.36/225,493.30
  6. Step 6: Final answer
    x = 170,442.00

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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.