Home / 208,519.25-287,730.81-148,067.87

Finding the Fourth Proportional to 208,519.25, 287,730.81 and 148,067.87

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Solution

The fourth proportional to 208,519.25, 287,730.81 and 148,067.87 is: 204,315.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,519.25 : 287,730.81 = 148,067.87 : x
  2. Step 2: Convert to fraction form
    208,519.25/287,730.81 = 148,067.87/x
  3. Step 3: Cross multiply
    208,519.25x = 287,730.81 × 148,067.87
  4. Step 4: Simplify right side
    208,519.25x = 42,603,686,731.42
  5. Step 5: Solve for x
    x = 42,603,686,731.42/208,519.25
  6. Step 6: Final answer
    x = 204,315.37

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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.