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Finding the Fourth Proportional to 275,605.08, 379,547.51 and 248,147.28

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Solution

The fourth proportional to 275,605.08, 379,547.51 and 248,147.28 is: 341,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,605.08 : 379,547.51 = 248,147.28 : x
  2. Step 2: Convert to fraction form
    275,605.08/379,547.51 = 248,147.28/x
  3. Step 3: Cross multiply
    275,605.08x = 379,547.51 × 248,147.28
  4. Step 4: Simplify right side
    275,605.08x = 94,183,680,996.54
  5. Step 5: Solve for x
    x = 94,183,680,996.54/275,605.08
  6. Step 6: Final answer
    x = 341,734.20

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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.