Home / 208,040.25-287,097.92-117,397.30

Finding the Fourth Proportional to 208,040.25, 287,097.92 and 117,397.30

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Solution

The fourth proportional to 208,040.25, 287,097.92 and 117,397.30 is: 162,009.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,040.25 : 287,097.92 = 117,397.30 : x
  2. Step 2: Convert to fraction form
    208,040.25/287,097.92 = 117,397.30/x
  3. Step 3: Cross multiply
    208,040.25x = 287,097.92 × 117,397.30
  4. Step 4: Simplify right side
    208,040.25x = 33,704,520,317.43
  5. Step 5: Solve for x
    x = 33,704,520,317.43/208,040.25
  6. Step 6: Final answer
    x = 162,009.61

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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.