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Finding the Fourth Proportional to 297,058.18, 445,579.89 and 86,697.94

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Solution

The fourth proportional to 297,058.18, 445,579.89 and 86,697.94 is: 130,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,058.18 : 445,579.89 = 86,697.94 : x
  2. Step 2: Convert to fraction form
    297,058.18/445,579.89 = 86,697.94/x
  3. Step 3: Cross multiply
    297,058.18x = 445,579.89 × 86,697.94
  4. Step 4: Simplify right side
    297,058.18x = 38,630,858,568.43
  5. Step 5: Solve for x
    x = 38,630,858,568.43/297,058.18
  6. Step 6: Final answer
    x = 130,044.76

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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.