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Finding the Fourth Proportional to 255,455.44, 383,182.92 and 120,488.02

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Solution

The fourth proportional to 255,455.44, 383,182.92 and 120,488.02 is: 180,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,455.44 : 383,182.92 = 120,488.02 : x
  2. Step 2: Convert to fraction form
    255,455.44/383,182.92 = 120,488.02/x
  3. Step 3: Cross multiply
    255,455.44x = 383,182.92 × 120,488.02
  4. Step 4: Simplify right side
    255,455.44x = 46,168,951,328.62
  5. Step 5: Solve for x
    x = 46,168,951,328.62/255,455.44
  6. Step 6: Final answer
    x = 180,731.92

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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.