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Finding the Fourth Proportional to 281,208.20, 421,156.20 and 275,570.60

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Solution

The fourth proportional to 281,208.20, 421,156.20 and 275,570.60 is: 412,712.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,208.20 : 421,156.20 = 275,570.60 : x
  2. Step 2: Convert to fraction form
    281,208.20/421,156.20 = 275,570.60/x
  3. Step 3: Cross multiply
    281,208.20x = 421,156.20 × 275,570.60
  4. Step 4: Simplify right side
    281,208.20x = 116,058,266,727.72
  5. Step 5: Solve for x
    x = 116,058,266,727.72/281,208.20
  6. Step 6: Final answer
    x = 412,712.95

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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.