Home / 208,890.43-288,305.61-118,251.55

Finding the Fourth Proportional to 208,890.43, 288,305.61 and 118,251.55

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Solution

The fourth proportional to 208,890.43, 288,305.61 and 118,251.55 is: 163,207.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,890.43 : 288,305.61 = 118,251.55 : x
  2. Step 2: Convert to fraction form
    208,890.43/288,305.61 = 118,251.55/x
  3. Step 3: Cross multiply
    208,890.43x = 288,305.61 × 118,251.55
  4. Step 4: Simplify right side
    208,890.43x = 34,092,583,223.41
  5. Step 5: Solve for x
    x = 34,092,583,223.41/208,890.43
  6. Step 6: Final answer
    x = 163,207.97

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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.