Home / 219,877.82-303,438.84-129,232.50

Finding the Fourth Proportional to 219,877.82, 303,438.84 and 129,232.50

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Solution

The fourth proportional to 219,877.82, 303,438.84 and 129,232.50 is: 178,345.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,877.82 : 303,438.84 = 129,232.50 : x
  2. Step 2: Convert to fraction form
    219,877.82/303,438.84 = 129,232.50/x
  3. Step 3: Cross multiply
    219,877.82x = 303,438.84 × 129,232.50
  4. Step 4: Simplify right side
    219,877.82x = 39,214,159,890.30
  5. Step 5: Solve for x
    x = 39,214,159,890.30/219,877.82
  6. Step 6: Final answer
    x = 178,345.23

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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.