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Finding the Fourth Proportional to 264,897.72, 397,360.36 and 87,418.58

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Solution

The fourth proportional to 264,897.72, 397,360.36 and 87,418.58 is: 131,132.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,897.72 : 397,360.36 = 87,418.58 : x
  2. Step 2: Convert to fraction form
    264,897.72/397,360.36 = 87,418.58/x
  3. Step 3: Cross multiply
    264,897.72x = 397,360.36 × 87,418.58
  4. Step 4: Simplify right side
    264,897.72x = 34,736,678,419.49
  5. Step 5: Solve for x
    x = 34,736,678,419.49/264,897.72
  6. Step 6: Final answer
    x = 131,132.42

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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.