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Finding the Fourth Proportional to 377,372.64, 520,989.24 and 250,220.16

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Solution

The fourth proportional to 377,372.64, 520,989.24 and 250,220.16 is: 345,446.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,372.64 : 520,989.24 = 250,220.16 : x
  2. Step 2: Convert to fraction form
    377,372.64/520,989.24 = 250,220.16/x
  3. Step 3: Cross multiply
    377,372.64x = 520,989.24 × 250,220.16
  4. Step 4: Simplify right side
    377,372.64x = 130,362,010,991.08
  5. Step 5: Solve for x
    x = 130,362,010,991.08/377,372.64
  6. Step 6: Final answer
    x = 345,446.38

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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.