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Finding the Fourth Proportional to 296,600.72, 444,977.01 and 86,238.72

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Solution

The fourth proportional to 296,600.72, 444,977.01 and 86,238.72 is: 129,380.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,600.72 : 444,977.01 = 86,238.72 : x
  2. Step 2: Convert to fraction form
    296,600.72/444,977.01 = 86,238.72/x
  3. Step 3: Cross multiply
    296,600.72x = 444,977.01 × 86,238.72
  4. Step 4: Simplify right side
    296,600.72x = 38,374,247,771.83
  5. Step 5: Solve for x
    x = 38,374,247,771.83/296,600.72
  6. Step 6: Final answer
    x = 129,380.16

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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.