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Finding the Fourth Proportional to 264,878.80, 397,367.06 and 87,398.08

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Solution

The fourth proportional to 264,878.80, 397,367.06 and 87,398.08 is: 131,113.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,878.80 : 397,367.06 = 87,398.08 : x
  2. Step 2: Convert to fraction form
    264,878.80/397,367.06 = 87,398.08/x
  3. Step 3: Cross multiply
    264,878.80x = 397,367.06 × 87,398.08
  4. Step 4: Simplify right side
    264,878.80x = 34,729,116,112.41
  5. Step 5: Solve for x
    x = 34,729,116,112.41/264,878.80
  6. Step 6: Final answer
    x = 131,113.24

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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.