Home / 208,440.90-287,695.67-117,849.33

Finding the Fourth Proportional to 208,440.90, 287,695.67 and 117,849.33

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Solution

The fourth proportional to 208,440.90, 287,695.67 and 117,849.33 is: 162,658.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,440.90 : 287,695.67 = 117,849.33 : x
  2. Step 2: Convert to fraction form
    208,440.90/287,695.67 = 117,849.33/x
  3. Step 3: Cross multiply
    208,440.90x = 287,695.67 × 117,849.33
  4. Step 4: Simplify right side
    208,440.90x = 33,904,741,364.15
  5. Step 5: Solve for x
    x = 33,904,741,364.15/208,440.90
  6. Step 6: Final answer
    x = 162,658.77

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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.