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Finding the Fourth Proportional to 265,150.99, 397,763.87 and 85,176.06

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Solution

The fourth proportional to 265,150.99, 397,763.87 and 85,176.06 is: 127,776.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,150.99 : 397,763.87 = 85,176.06 : x
  2. Step 2: Convert to fraction form
    265,150.99/397,763.87 = 85,176.06/x
  3. Step 3: Cross multiply
    265,150.99x = 397,763.87 × 85,176.06
  4. Step 4: Simplify right side
    265,150.99x = 33,879,957,339.46
  5. Step 5: Solve for x
    x = 33,879,957,339.46/265,150.99
  6. Step 6: Final answer
    x = 127,776.09

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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.