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Finding the Fourth Proportional to 230,048.40, 345,072.60 and 170,999.40

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Solution

The fourth proportional to 230,048.40, 345,072.60 and 170,999.40 is: 256,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,048.40 : 345,072.60 = 170,999.40 : x
  2. Step 2: Convert to fraction form
    230,048.40/345,072.60 = 170,999.40/x
  3. Step 3: Cross multiply
    230,048.40x = 345,072.60 × 170,999.40
  4. Step 4: Simplify right side
    230,048.40x = 59,007,207,556.44
  5. Step 5: Solve for x
    x = 59,007,207,556.44/230,048.40
  6. Step 6: Final answer
    x = 256,499.10

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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.