Home / 400,907.04-553,121.55-273,361.20

Finding the Fourth Proportional to 400,907.04, 553,121.55 and 273,361.20

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Solution

The fourth proportional to 400,907.04, 553,121.55 and 273,361.20 is: 377,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,907.04 : 553,121.55 = 273,361.20 : x
  2. Step 2: Convert to fraction form
    400,907.04/553,121.55 = 273,361.20/x
  3. Step 3: Cross multiply
    400,907.04x = 553,121.55 × 273,361.20
  4. Step 4: Simplify right side
    400,907.04x = 151,201,970,653.86
  5. Step 5: Solve for x
    x = 151,201,970,653.86/400,907.04
  6. Step 6: Final answer
    x = 377,149.70

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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.