Home / 285,512.08-428,328.24-108,015.20

Finding the Fourth Proportional to 285,512.08, 428,328.24 and 108,015.20

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Solution

The fourth proportional to 285,512.08, 428,328.24 and 108,015.20 is: 162,045.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,512.08 : 428,328.24 = 108,015.20 : x
  2. Step 2: Convert to fraction form
    285,512.08/428,328.24 = 108,015.20/x
  3. Step 3: Cross multiply
    285,512.08x = 428,328.24 × 108,015.20
  4. Step 4: Simplify right side
    285,512.08x = 46,265,960,509.25
  5. Step 5: Solve for x
    x = 46,265,960,509.25/285,512.08
  6. Step 6: Final answer
    x = 162,045.54

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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.