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Finding the Fourth Proportional to 264,934, 397,303.80 and 87,388.48

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Solution

The fourth proportional to 264,934, 397,303.80 and 87,388.48 is: 131,050.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,934 : 397,303.80 = 87,388.48 : x
  2. Step 2: Convert to fraction form
    264,934/397,303.80 = 87,388.48/x
  3. Step 3: Cross multiply
    264,934x = 397,303.80 × 87,388.48
  4. Step 4: Simplify right side
    264,934x = 34,719,775,180.22
  5. Step 5: Solve for x
    x = 34,719,775,180.22/264,934
  6. Step 6: Final answer
    x = 131,050.66

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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.