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Finding the Fourth Proportional to 377,151.03, 520,393.91 and 211,584.51

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Solution

The fourth proportional to 377,151.03, 520,393.91 and 211,584.51 is: 291,944.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,151.03 : 520,393.91 = 211,584.51 : x
  2. Step 2: Convert to fraction form
    377,151.03/520,393.91 = 211,584.51/x
  3. Step 3: Cross multiply
    377,151.03x = 520,393.91 × 211,584.51
  4. Step 4: Simplify right side
    377,151.03x = 110,107,289,396.41
  5. Step 5: Solve for x
    x = 110,107,289,396.41/377,151.03
  6. Step 6: Final answer
    x = 291,944.82

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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.