Home / 219,246.62-328,736.75-85,967.19

Finding the Fourth Proportional to 219,246.62, 328,736.75 and 85,967.19

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Solution

The fourth proportional to 219,246.62, 328,736.75 and 85,967.19 is: 128,898.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,246.62 : 328,736.75 = 85,967.19 : x
  2. Step 2: Convert to fraction form
    219,246.62/328,736.75 = 85,967.19/x
  3. Step 3: Cross multiply
    219,246.62x = 328,736.75 × 85,967.19
  4. Step 4: Simplify right side
    219,246.62x = 28,260,574,217.40
  5. Step 5: Solve for x
    x = 28,260,574,217.40/219,246.62
  6. Step 6: Final answer
    x = 128,898.57

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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.