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Finding the Fourth Proportional to 255,446.44, 383,169.42 and 120,479.02

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Solution

The fourth proportional to 255,446.44, 383,169.42 and 120,479.02 is: 180,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,446.44 : 383,169.42 = 120,479.02 : x
  2. Step 2: Convert to fraction form
    255,446.44/383,169.42 = 120,479.02/x
  3. Step 3: Cross multiply
    255,446.44x = 383,169.42 × 120,479.02
  4. Step 4: Simplify right side
    255,446.44x = 46,163,875,257.64
  5. Step 5: Solve for x
    x = 46,163,875,257.64/255,446.44
  6. Step 6: Final answer
    x = 180,718.41

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1.5x scale

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.