Home / 377,356.23-520,720.05-222,282.90

Finding the Fourth Proportional to 377,356.23, 520,720.05 and 222,282.90

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Solution

The fourth proportional to 377,356.23, 520,720.05 and 222,282.90 is: 306,731.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,356.23 : 520,720.05 = 222,282.90 : x
  2. Step 2: Convert to fraction form
    377,356.23/520,720.05 = 222,282.90/x
  3. Step 3: Cross multiply
    377,356.23x = 520,720.05 × 222,282.90
  4. Step 4: Simplify right side
    377,356.23x = 115,747,162,802.15
  5. Step 5: Solve for x
    x = 115,747,162,802.15/377,356.23
  6. Step 6: Final answer
    x = 306,731.82

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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.