Home / 208,639.28-312,958.92-50,869.10

Finding the Fourth Proportional to 208,639.28, 312,958.92 and 50,869.10

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Solution

The fourth proportional to 208,639.28, 312,958.92 and 50,869.10 is: 76,303.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,639.28 : 312,958.92 = 50,869.10 : x
  2. Step 2: Convert to fraction form
    208,639.28/312,958.92 = 50,869.10/x
  3. Step 3: Cross multiply
    208,639.28x = 312,958.92 × 50,869.10
  4. Step 4: Simplify right side
    208,639.28x = 15,919,937,032.58
  5. Step 5: Solve for x
    x = 15,919,937,032.58/208,639.28
  6. Step 6: Final answer
    x = 76,303.64

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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.