Home / 208,914.86-288,320.35-118,286.80

Finding the Fourth Proportional to 208,914.86, 288,320.35 and 118,286.80

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Solution

The fourth proportional to 208,914.86, 288,320.35 and 118,286.80 is: 163,245.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,914.86 : 288,320.35 = 118,286.80 : x
  2. Step 2: Convert to fraction form
    208,914.86/288,320.35 = 118,286.80/x
  3. Step 3: Cross multiply
    208,914.86x = 288,320.35 × 118,286.80
  4. Step 4: Simplify right side
    208,914.86x = 34,104,490,134.78
  5. Step 5: Solve for x
    x = 34,104,490,134.78/208,914.86
  6. Step 6: Final answer
    x = 163,245.88

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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.