Home / 208,238.16-287,369.04-112,745.76

Finding the Fourth Proportional to 208,238.16, 287,369.04 and 112,745.76

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Solution

The fourth proportional to 208,238.16, 287,369.04 and 112,745.76 is: 155,589.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,238.16 : 287,369.04 = 112,745.76 : x
  2. Step 2: Convert to fraction form
    208,238.16/287,369.04 = 112,745.76/x
  3. Step 3: Cross multiply
    208,238.16x = 287,369.04 × 112,745.76
  4. Step 4: Simplify right side
    208,238.16x = 32,399,640,815.27
  5. Step 5: Solve for x
    x = 32,399,640,815.27/208,238.16
  6. Step 6: Final answer
    x = 155,589.35

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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.