Home / 208,205.31-287,323.26-112,711.94

Finding the Fourth Proportional to 208,205.31, 287,323.26 and 112,711.94

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Solution

The fourth proportional to 208,205.31, 287,323.26 and 112,711.94 is: 155,542.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,205.31 : 287,323.26 = 112,711.94 : x
  2. Step 2: Convert to fraction form
    208,205.31/287,323.26 = 112,711.94/x
  3. Step 3: Cross multiply
    208,205.31x = 287,323.26 × 112,711.94
  4. Step 4: Simplify right side
    208,205.31x = 32,384,762,041.72
  5. Step 5: Solve for x
    x = 32,384,762,041.72/208,205.31
  6. Step 6: Final answer
    x = 155,542.44

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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.