Home / 208,168.20-287,271.30-112,676.52

Finding the Fourth Proportional to 208,168.20, 287,271.30 and 112,676.52

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Solution

The fourth proportional to 208,168.20, 287,271.30 and 112,676.52 is: 155,493.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,168.20 : 287,271.30 = 112,676.52 : x
  2. Step 2: Convert to fraction form
    208,168.20/287,271.30 = 112,676.52/x
  3. Step 3: Cross multiply
    208,168.20x = 287,271.30 × 112,676.52
  4. Step 4: Simplify right side
    208,168.20x = 32,368,730,379.88
  5. Step 5: Solve for x
    x = 32,368,730,379.88/208,168.20
  6. Step 6: Final answer
    x = 155,493.16

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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.