Home / 219,433.29-329,120.74-86,277.79

Finding the Fourth Proportional to 219,433.29, 329,120.74 and 86,277.79

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Solution

The fourth proportional to 219,433.29, 329,120.74 and 86,277.79 is: 129,405.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,433.29 : 329,120.74 = 86,277.79 : x
  2. Step 2: Convert to fraction form
    219,433.29/329,120.74 = 86,277.79/x
  3. Step 3: Cross multiply
    219,433.29x = 329,120.74 × 86,277.79
  4. Step 4: Simplify right side
    219,433.29x = 28,395,810,090.36
  5. Step 5: Solve for x
    x = 28,395,810,090.36/219,433.29
  6. Step 6: Final answer
    x = 129,405.21

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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.