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Finding the Fourth Proportional to 255,491.64, 352,589.34 and 142,314.44

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Solution

The fourth proportional to 255,491.64, 352,589.34 and 142,314.44 is: 196,399.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,491.64 : 352,589.34 = 142,314.44 : x
  2. Step 2: Convert to fraction form
    255,491.64/352,589.34 = 142,314.44/x
  3. Step 3: Cross multiply
    255,491.64x = 352,589.34 × 142,314.44
  4. Step 4: Simplify right side
    255,491.64x = 50,178,554,472.07
  5. Step 5: Solve for x
    x = 50,178,554,472.07/255,491.64
  6. Step 6: Final answer
    x = 196,399.99

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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.