Home / 287,977.60-431,601.90-110,247.40

Finding the Fourth Proportional to 287,977.60, 431,601.90 and 110,247.40

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Solution

The fourth proportional to 287,977.60, 431,601.90 and 110,247.40 is: 165,231.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,977.60 : 431,601.90 = 110,247.40 : x
  2. Step 2: Convert to fraction form
    287,977.60/431,601.90 = 110,247.40/x
  3. Step 3: Cross multiply
    287,977.60x = 431,601.90 × 110,247.40
  4. Step 4: Simplify right side
    287,977.60x = 47,582,987,310.06
  5. Step 5: Solve for x
    x = 47,582,987,310.06/287,977.60
  6. Step 6: Final answer
    x = 165,231.56

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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.