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Finding the Fourth Proportional to 603,575.40, 905,362.92 and 154,297.20

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Solution

The fourth proportional to 603,575.40, 905,362.92 and 154,297.20 is: 231,445.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,575.40 : 905,362.92 = 154,297.20 : x
  2. Step 2: Convert to fraction form
    603,575.40/905,362.92 = 154,297.20/x
  3. Step 3: Cross multiply
    603,575.40x = 905,362.92 × 154,297.20
  4. Step 4: Simplify right side
    603,575.40x = 139,694,963,539.82
  5. Step 5: Solve for x
    x = 139,694,963,539.82/603,575.40
  6. Step 6: Final answer
    x = 231,445.75

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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.