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Finding the Fourth Proportional to 225,519, 311,216.22 and 136,095

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Solution

The fourth proportional to 225,519, 311,216.22 and 136,095 is: 187,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,519 : 311,216.22 = 136,095 : x
  2. Step 2: Convert to fraction form
    225,519/311,216.22 = 136,095/x
  3. Step 3: Cross multiply
    225,519x = 311,216.22 × 136,095
  4. Step 4: Simplify right side
    225,519x = 42,354,971,460.90
  5. Step 5: Solve for x
    x = 42,354,971,460.90/225,519
  6. Step 6: Final answer
    x = 187,811.10

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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.