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Finding the Fourth Proportional to 513,668.80, 770,505.60 and 181,244.80

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Solution

The fourth proportional to 513,668.80, 770,505.60 and 181,244.80 is: 271,868.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,668.80 : 770,505.60 = 181,244.80 : x
  2. Step 2: Convert to fraction form
    513,668.80/770,505.60 = 181,244.80/x
  3. Step 3: Cross multiply
    513,668.80x = 770,505.60 × 181,244.80
  4. Step 4: Simplify right side
    513,668.80x = 139,650,133,370.88
  5. Step 5: Solve for x
    x = 139,650,133,370.88/513,668.80
  6. Step 6: Final answer
    x = 271,868.05

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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.