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Finding the Fourth Proportional to 275,313.90, 412,883.37 and 187,134.06

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Solution

The fourth proportional to 275,313.90, 412,883.37 and 187,134.06 is: 280,641.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,313.90 : 412,883.37 = 187,134.06 : x
  2. Step 2: Convert to fraction form
    275,313.90/412,883.37 = 187,134.06/x
  3. Step 3: Cross multiply
    275,313.90x = 412,883.37 × 187,134.06
  4. Step 4: Simplify right side
    275,313.90x = 77,264,541,334.58
  5. Step 5: Solve for x
    x = 77,264,541,334.58/275,313.90
  6. Step 6: Final answer
    x = 280,641.63

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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.