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Finding the Fourth Proportional to 208,731.99, 288,044.45 and 115,594.49

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Solution

The fourth proportional to 208,731.99, 288,044.45 and 115,594.49 is: 159,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,731.99 : 288,044.45 = 115,594.49 : x
  2. Step 2: Convert to fraction form
    208,731.99/288,044.45 = 115,594.49/x
  3. Step 3: Cross multiply
    208,731.99x = 288,044.45 × 115,594.49
  4. Step 4: Simplify right side
    208,731.99x = 33,296,352,520.92
  5. Step 5: Solve for x
    x = 33,296,352,520.92/208,731.99
  6. Step 6: Final answer
    x = 159,517.25

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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.