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Finding the Fourth Proportional to 377,020.83, 520,301.42 and 221,944.14

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Solution

The fourth proportional to 377,020.83, 520,301.42 and 221,944.14 is: 306,290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,020.83 : 520,301.42 = 221,944.14 : x
  2. Step 2: Convert to fraction form
    377,020.83/520,301.42 = 221,944.14/x
  3. Step 3: Cross multiply
    377,020.83x = 520,301.42 × 221,944.14
  4. Step 4: Simplify right side
    377,020.83x = 115,477,850,092.96
  5. Step 5: Solve for x
    x = 115,477,850,092.96/377,020.83
  6. Step 6: Final answer
    x = 306,290.37

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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.