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Finding the Fourth Proportional to 377,150.57, 520,424.15 and 215,996.01

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Solution

The fourth proportional to 377,150.57, 520,424.15 and 215,996.01 is: 298,049.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,150.57 : 520,424.15 = 215,996.01 : x
  2. Step 2: Convert to fraction form
    377,150.57/520,424.15 = 215,996.01/x
  3. Step 3: Cross multiply
    377,150.57x = 520,424.15 × 215,996.01
  4. Step 4: Simplify right side
    377,150.57x = 112,409,539,907.64
  5. Step 5: Solve for x
    x = 112,409,539,907.64/377,150.57
  6. Step 6: Final answer
    x = 298,049.50

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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.