Home / 287,787.08-431,434.44-110,421.38

Finding the Fourth Proportional to 287,787.08, 431,434.44 and 110,421.38

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Solution

The fourth proportional to 287,787.08, 431,434.44 and 110,421.38 is: 165,537.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,787.08 : 431,434.44 = 110,421.38 : x
  2. Step 2: Convert to fraction form
    287,787.08/431,434.44 = 110,421.38/x
  3. Step 3: Cross multiply
    287,787.08x = 431,434.44 × 110,421.38
  4. Step 4: Simplify right side
    287,787.08x = 47,639,584,087.16
  5. Step 5: Solve for x
    x = 47,639,584,087.16/287,787.08
  6. Step 6: Final answer
    x = 165,537.61

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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.