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Finding the Fourth Proportional to 296,721, 445,151.50 and 97,040.60

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Solution

The fourth proportional to 296,721, 445,151.50 and 97,040.60 is: 145,583.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,721 : 445,151.50 = 97,040.60 : x
  2. Step 2: Convert to fraction form
    296,721/445,151.50 = 97,040.60/x
  3. Step 3: Cross multiply
    296,721x = 445,151.50 × 97,040.60
  4. Step 4: Simplify right side
    296,721x = 43,197,768,650.90
  5. Step 5: Solve for x
    x = 43,197,768,650.90/296,721
  6. Step 6: Final answer
    x = 145,583.79

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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.