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Finding the Fourth Proportional to 445,651.05, 614,939.27 and 252,085.15

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Solution

The fourth proportional to 445,651.05, 614,939.27 and 252,085.15 is: 347,844.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,651.05 : 614,939.27 = 252,085.15 : x
  2. Step 2: Convert to fraction form
    445,651.05/614,939.27 = 252,085.15/x
  3. Step 3: Cross multiply
    445,651.05x = 614,939.27 × 252,085.15
  4. Step 4: Simplify right side
    445,651.05x = 155,017,058,118.84
  5. Step 5: Solve for x
    x = 155,017,058,118.84/445,651.05
  6. Step 6: Final answer
    x = 347,844.03

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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.