Home / 208,585.28-312,874.20-50,813.36

Finding the Fourth Proportional to 208,585.28, 312,874.20 and 50,813.36

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Solution

The fourth proportional to 208,585.28, 312,874.20 and 50,813.36 is: 76,219.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,585.28 : 312,874.20 = 50,813.36 : x
  2. Step 2: Convert to fraction form
    208,585.28/312,874.20 = 50,813.36/x
  3. Step 3: Cross multiply
    208,585.28x = 312,874.20 × 50,813.36
  4. Step 4: Simplify right side
    208,585.28x = 15,898,189,359.31
  5. Step 5: Solve for x
    x = 15,898,189,359.31/208,585.28
  6. Step 6: Final answer
    x = 76,219.13

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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.