Home / 208,203.81-287,321.20-112,710.44

Finding the Fourth Proportional to 208,203.81, 287,321.20 and 112,710.44

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Solution

The fourth proportional to 208,203.81, 287,321.20 and 112,710.44 is: 155,540.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,203.81 : 287,321.20 = 112,710.44 : x
  2. Step 2: Convert to fraction form
    208,203.81/287,321.20 = 112,710.44/x
  3. Step 3: Cross multiply
    208,203.81x = 287,321.20 × 112,710.44
  4. Step 4: Simplify right side
    208,203.81x = 32,384,097,154.95
  5. Step 5: Solve for x
    x = 32,384,097,154.95/208,203.81
  6. Step 6: Final answer
    x = 155,540.37

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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.