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Finding the Fourth Proportional to 297,577.82, 445,964.96 and 139,452.86

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Solution

The fourth proportional to 297,577.82, 445,964.96 and 139,452.86 is: 208,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,577.82 : 445,964.96 = 139,452.86 : x
  2. Step 2: Convert to fraction form
    297,577.82/445,964.96 = 139,452.86/x
  3. Step 3: Cross multiply
    297,577.82x = 445,964.96 × 139,452.86
  4. Step 4: Simplify right side
    297,577.82x = 62,191,090,595.33
  5. Step 5: Solve for x
    x = 62,191,090,595.33/297,577.82
  6. Step 6: Final answer
    x = 208,991.01

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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.