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Finding the Fourth Proportional to 377,274.83, 520,485.66 and 213,896.89

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Solution

The fourth proportional to 377,274.83, 520,485.66 and 213,896.89 is: 295,090.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,274.83 : 520,485.66 = 213,896.89 : x
  2. Step 2: Convert to fraction form
    377,274.83/520,485.66 = 213,896.89/x
  3. Step 3: Cross multiply
    377,274.83x = 520,485.66 × 213,896.89
  4. Step 4: Simplify right side
    377,274.83x = 111,330,263,963.60
  5. Step 5: Solve for x
    x = 111,330,263,963.60/377,274.83
  6. Step 6: Final answer
    x = 295,090.62

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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.