Home / 208,811.89-288,160.59-113,318.58

Finding the Fourth Proportional to 208,811.89, 288,160.59 and 113,318.58

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Solution

The fourth proportional to 208,811.89, 288,160.59 and 113,318.58 is: 156,379.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,811.89 : 288,160.59 = 113,318.58 : x
  2. Step 2: Convert to fraction form
    208,811.89/288,160.59 = 113,318.58/x
  3. Step 3: Cross multiply
    208,811.89x = 288,160.59 × 113,318.58
  4. Step 4: Simplify right side
    208,811.89x = 32,653,947,429.96
  5. Step 5: Solve for x
    x = 32,653,947,429.96/208,811.89
  6. Step 6: Final answer
    x = 156,379.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.