Home / 208,284.78-287,433.15-112,791.58

Finding the Fourth Proportional to 208,284.78, 287,433.15 and 112,791.58

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Solution

The fourth proportional to 208,284.78, 287,433.15 and 112,791.58 is: 155,652.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,284.78 : 287,433.15 = 112,791.58 : x
  2. Step 2: Convert to fraction form
    208,284.78/287,433.15 = 112,791.58/x
  3. Step 3: Cross multiply
    208,284.78x = 287,433.15 × 112,791.58
  4. Step 4: Simplify right side
    208,284.78x = 32,420,039,132.88
  5. Step 5: Solve for x
    x = 32,420,039,132.88/208,284.78
  6. Step 6: Final answer
    x = 155,652.46

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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.