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Finding the Fourth Proportional to 296,911.34, 445,360.54 and 72,272.96

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Solution

The fourth proportional to 296,911.34, 445,360.54 and 72,272.96 is: 108,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,911.34 : 445,360.54 = 72,272.96 : x
  2. Step 2: Convert to fraction form
    296,911.34/445,360.54 = 72,272.96/x
  3. Step 3: Cross multiply
    296,911.34x = 445,360.54 × 72,272.96
  4. Step 4: Simplify right side
    296,911.34x = 32,187,524,493.00
  5. Step 5: Solve for x
    x = 32,187,524,493.00/296,911.34
  6. Step 6: Final answer
    x = 108,407.87

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1.5x scale

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.