Home / 208,335.25-287,520.33-117,707.86

Finding the Fourth Proportional to 208,335.25, 287,520.33 and 117,707.86

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Solution

The fourth proportional to 208,335.25, 287,520.33 and 117,707.86 is: 162,446.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,335.25 : 287,520.33 = 117,707.86 : x
  2. Step 2: Convert to fraction form
    208,335.25/287,520.33 = 117,707.86/x
  3. Step 3: Cross multiply
    208,335.25x = 287,520.33 × 117,707.86
  4. Step 4: Simplify right side
    208,335.25x = 33,843,402,750.79
  5. Step 5: Solve for x
    x = 33,843,402,750.79/208,335.25
  6. Step 6: Final answer
    x = 162,446.84

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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.