Home / 378,589.64-567,991.76-154,111.16

Finding the Fourth Proportional to 378,589.64, 567,991.76 and 154,111.16

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Solution

The fourth proportional to 378,589.64, 567,991.76 and 154,111.16 is: 231,210.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,589.64 : 567,991.76 = 154,111.16 : x
  2. Step 2: Convert to fraction form
    378,589.64/567,991.76 = 154,111.16/x
  3. Step 3: Cross multiply
    378,589.64x = 567,991.76 × 154,111.16
  4. Step 4: Simplify right side
    378,589.64x = 87,533,869,653.47
  5. Step 5: Solve for x
    x = 87,533,869,653.47/378,589.64
  6. Step 6: Final answer
    x = 231,210.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.