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Finding the Fourth Proportional to 178,830.40, 268,245.60 and 60,505.60

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Solution

The fourth proportional to 178,830.40, 268,245.60 and 60,505.60 is: 90,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,830.40 : 268,245.60 = 60,505.60 : x
  2. Step 2: Convert to fraction form
    178,830.40/268,245.60 = 60,505.60/x
  3. Step 3: Cross multiply
    178,830.40x = 268,245.60 × 60,505.60
  4. Step 4: Simplify right side
    178,830.40x = 16,230,360,975.36
  5. Step 5: Solve for x
    x = 16,230,360,975.36/178,830.40
  6. Step 6: Final answer
    x = 90,758.40

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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.