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Finding the Fourth Proportional to 377,153.36, 520,440.72 and 222,080.12

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Solution

The fourth proportional to 377,153.36, 520,440.72 and 222,080.12 is: 306,452.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,153.36 : 520,440.72 = 222,080.12 : x
  2. Step 2: Convert to fraction form
    377,153.36/520,440.72 = 222,080.12/x
  3. Step 3: Cross multiply
    377,153.36x = 520,440.72 × 222,080.12
  4. Step 4: Simplify right side
    377,153.36x = 115,579,537,550.49
  5. Step 5: Solve for x
    x = 115,579,537,550.49/377,153.36
  6. Step 6: Final answer
    x = 306,452.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.