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Finding the Fourth Proportional to 219,642.66, 303,107.13 and 119,040.66

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Solution

The fourth proportional to 219,642.66, 303,107.13 and 119,040.66 is: 164,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,642.66 : 303,107.13 = 119,040.66 : x
  2. Step 2: Convert to fraction form
    219,642.66/303,107.13 = 119,040.66/x
  3. Step 3: Cross multiply
    219,642.66x = 303,107.13 × 119,040.66
  4. Step 4: Simplify right side
    219,642.66x = 36,082,072,805.91
  5. Step 5: Solve for x
    x = 36,082,072,805.91/219,642.66
  6. Step 6: Final answer
    x = 164,276.25

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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.