Home / 219,631.29-329,471.16-69,836.55

Finding the Fourth Proportional to 219,631.29, 329,471.16 and 69,836.55

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Solution

The fourth proportional to 219,631.29, 329,471.16 and 69,836.55 is: 104,762.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,631.29 : 329,471.16 = 69,836.55 : x
  2. Step 2: Convert to fraction form
    219,631.29/329,471.16 = 69,836.55/x
  3. Step 3: Cross multiply
    219,631.29x = 329,471.16 × 69,836.55
  4. Step 4: Simplify right side
    219,631.29x = 23,009,129,138.90
  5. Step 5: Solve for x
    x = 23,009,129,138.90/219,631.29
  6. Step 6: Final answer
    x = 104,762.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.