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Finding the Fourth Proportional to 377,299.87, 520,776.18 and 222,386.47

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Solution

The fourth proportional to 377,299.87, 520,776.18 and 222,386.47 is: 306,953.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,299.87 : 520,776.18 = 222,386.47 : x
  2. Step 2: Convert to fraction form
    377,299.87/520,776.18 = 222,386.47/x
  3. Step 3: Cross multiply
    377,299.87x = 520,776.18 × 222,386.47
  4. Step 4: Simplify right side
    377,299.87x = 115,813,575,028.34
  5. Step 5: Solve for x
    x = 115,813,575,028.34/377,299.87
  6. Step 6: Final answer
    x = 306,953.66

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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.