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Finding the Fourth Proportional to 296,874.90, 445,366.35 and 97,139.70

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Solution

The fourth proportional to 296,874.90, 445,366.35 and 97,139.70 is: 145,727.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,874.90 : 445,366.35 = 97,139.70 : x
  2. Step 2: Convert to fraction form
    296,874.90/445,366.35 = 97,139.70/x
  3. Step 3: Cross multiply
    296,874.90x = 445,366.35 × 97,139.70
  4. Step 4: Simplify right side
    296,874.90x = 43,262,753,629.10
  5. Step 5: Solve for x
    x = 43,262,753,629.10/296,874.90
  6. Step 6: Final answer
    x = 145,727.22

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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.