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Finding the Fourth Proportional to 225,495, 311,193 and 124,893

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Solution

The fourth proportional to 225,495, 311,193 and 124,893 is: 172,357.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,495 : 311,193 = 124,893 : x
  2. Step 2: Convert to fraction form
    225,495/311,193 = 124,893/x
  3. Step 3: Cross multiply
    225,495x = 311,193 × 124,893
  4. Step 4: Simplify right side
    225,495x = 38,865,827,349
  5. Step 5: Solve for x
    x = 38,865,827,349/225,495
  6. Step 6: Final answer
    x = 172,357.82

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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.