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Finding the Fourth Proportional to 275,810.36, 413,505.06 and 142,605.58

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Solution

The fourth proportional to 275,810.36, 413,505.06 and 142,605.58 is: 213,799.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,810.36 : 413,505.06 = 142,605.58 : x
  2. Step 2: Convert to fraction form
    275,810.36/413,505.06 = 142,605.58/x
  3. Step 3: Cross multiply
    275,810.36x = 413,505.06 × 142,605.58
  4. Step 4: Simplify right side
    275,810.36x = 58,968,128,914.23
  5. Step 5: Solve for x
    x = 58,968,128,914.23/275,810.36
  6. Step 6: Final answer
    x = 213,799.54

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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.