Home / 255,904.20-383,856.30-113,749.20

Finding the Fourth Proportional to 255,904.20, 383,856.30 and 113,749.20

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Solution

The fourth proportional to 255,904.20, 383,856.30 and 113,749.20 is: 170,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,904.20 : 383,856.30 = 113,749.20 : x
  2. Step 2: Convert to fraction form
    255,904.20/383,856.30 = 113,749.20/x
  3. Step 3: Cross multiply
    255,904.20x = 383,856.30 × 113,749.20
  4. Step 4: Simplify right side
    255,904.20x = 43,663,347,039.96
  5. Step 5: Solve for x
    x = 43,663,347,039.96/255,904.20
  6. Step 6: Final answer
    x = 170,623.80

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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.