Home / 287,790.08-431,438.94-110,424.38

Finding the Fourth Proportional to 287,790.08, 431,438.94 and 110,424.38

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Solution

The fourth proportional to 287,790.08, 431,438.94 and 110,424.38 is: 165,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,790.08 : 431,438.94 = 110,424.38 : x
  2. Step 2: Convert to fraction form
    287,790.08/431,438.94 = 110,424.38/x
  3. Step 3: Cross multiply
    287,790.08x = 431,438.94 × 110,424.38
  4. Step 4: Simplify right side
    287,790.08x = 47,641,375,300.16
  5. Step 5: Solve for x
    x = 47,641,375,300.16/287,790.08
  6. Step 6: Final answer
    x = 165,542.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.