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Finding the Fourth Proportional to 405,150.80, 606,851.40 and 263,433.20

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Solution

The fourth proportional to 405,150.80, 606,851.40 and 263,433.20 is: 394,581.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,150.80 : 606,851.40 = 263,433.20 : x
  2. Step 2: Convert to fraction form
    405,150.80/606,851.40 = 263,433.20/x
  3. Step 3: Cross multiply
    405,150.80x = 606,851.40 × 263,433.20
  4. Step 4: Simplify right side
    405,150.80x = 159,864,806,226.48
  5. Step 5: Solve for x
    x = 159,864,806,226.48/405,150.80
  6. Step 6: Final answer
    x = 394,581.00

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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.