Home / 208,376.37-312,455.21-108,291.96

Finding the Fourth Proportional to 208,376.37, 312,455.21 and 108,291.96

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Solution

The fourth proportional to 208,376.37, 312,455.21 and 108,291.96 is: 162,381.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,376.37 : 312,455.21 = 108,291.96 : x
  2. Step 2: Convert to fraction form
    208,376.37/312,455.21 = 108,291.96/x
  3. Step 3: Cross multiply
    208,376.37x = 312,455.21 × 108,291.96
  4. Step 4: Simplify right side
    208,376.37x = 33,836,386,561.65
  5. Step 5: Solve for x
    x = 33,836,386,561.65/208,376.37
  6. Step 6: Final answer
    x = 162,381.11

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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.