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Finding the Fourth Proportional to 208,883.73, 288,178.81 and 118,218.91

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Solution

The fourth proportional to 208,883.73, 288,178.81 and 118,218.91 is: 163,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,883.73 : 288,178.81 = 118,218.91 : x
  2. Step 2: Convert to fraction form
    208,883.73/288,178.81 = 118,218.91/x
  3. Step 3: Cross multiply
    208,883.73x = 288,178.81 × 118,218.91
  4. Step 4: Simplify right side
    208,883.73x = 34,068,183,787.30
  5. Step 5: Solve for x
    x = 34,068,183,787.30/208,883.73
  6. Step 6: Final answer
    x = 163,096.40

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1.5x scale

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.