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Finding the Fourth Proportional to 255,746.60, 383,466.30 and 131,330.60

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Solution

The fourth proportional to 255,746.60, 383,466.30 and 131,330.60 is: 196,917.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,746.60 : 383,466.30 = 131,330.60 : x
  2. Step 2: Convert to fraction form
    255,746.60/383,466.30 = 131,330.60/x
  3. Step 3: Cross multiply
    255,746.60x = 383,466.30 × 131,330.60
  4. Step 4: Simplify right side
    255,746.60x = 50,360,859,258.78
  5. Step 5: Solve for x
    x = 50,360,859,258.78/255,746.60
  6. Step 6: Final answer
    x = 196,917.02

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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.