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Finding the Fourth Proportional to 383,316.30, 575,035.20 and 130,620.60

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Solution

The fourth proportional to 383,316.30, 575,035.20 and 130,620.60 is: 195,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,316.30 : 575,035.20 = 130,620.60 : x
  2. Step 2: Convert to fraction form
    383,316.30/575,035.20 = 130,620.60/x
  3. Step 3: Cross multiply
    383,316.30x = 575,035.20 × 130,620.60
  4. Step 4: Simplify right side
    383,316.30x = 75,111,442,845.12
  5. Step 5: Solve for x
    x = 75,111,442,845.12/383,316.30
  6. Step 6: Final answer
    x = 195,951.60

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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.