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Finding the Fourth Proportional to 275,751.51, 380,503.64 and 153,243.29

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Solution

The fourth proportional to 275,751.51, 380,503.64 and 153,243.29 is: 211,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,751.51 : 380,503.64 = 153,243.29 : x
  2. Step 2: Convert to fraction form
    275,751.51/380,503.64 = 153,243.29/x
  3. Step 3: Cross multiply
    275,751.51x = 380,503.64 × 153,243.29
  4. Step 4: Simplify right side
    275,751.51x = 58,309,630,984.94
  5. Step 5: Solve for x
    x = 58,309,630,984.94/275,751.51
  6. Step 6: Final answer
    x = 211,457.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.