Home / 216,009.40-323,916.90-82,845.40

Finding the Fourth Proportional to 216,009.40, 323,916.90 and 82,845.40

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Solution

The fourth proportional to 216,009.40, 323,916.90 and 82,845.40 is: 124,230.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,009.40 : 323,916.90 = 82,845.40 : x
  2. Step 2: Convert to fraction form
    216,009.40/323,916.90 = 82,845.40/x
  3. Step 3: Cross multiply
    216,009.40x = 323,916.90 × 82,845.40
  4. Step 4: Simplify right side
    216,009.40x = 26,835,025,147.26
  5. Step 5: Solve for x
    x = 26,835,025,147.26/216,009.40
  6. Step 6: Final answer
    x = 124,230.82

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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.