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Finding the Fourth Proportional to 255,740.60, 383,457.30 and 131,324.60

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Solution

The fourth proportional to 255,740.60, 383,457.30 and 131,324.60 is: 196,908.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,740.60 : 383,457.30 = 131,324.60 : x
  2. Step 2: Convert to fraction form
    255,740.60/383,457.30 = 131,324.60/x
  3. Step 3: Cross multiply
    255,740.60x = 383,457.30 × 131,324.60
  4. Step 4: Simplify right side
    255,740.60x = 50,357,376,539.58
  5. Step 5: Solve for x
    x = 50,357,376,539.58/255,740.60
  6. Step 6: Final answer
    x = 196,908.03

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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.