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Finding the Fourth Proportional to 281,404.26, 421,541.01 and 131,437.62

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Solution

The fourth proportional to 281,404.26, 421,541.01 and 131,437.62 is: 196,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,404.26 : 421,541.01 = 131,437.62 : x
  2. Step 2: Convert to fraction form
    281,404.26/421,541.01 = 131,437.62/x
  3. Step 3: Cross multiply
    281,404.26x = 421,541.01 × 131,437.62
  4. Step 4: Simplify right side
    281,404.26x = 55,406,347,086.80
  5. Step 5: Solve for x
    x = 55,406,347,086.80/281,404.26
  6. Step 6: Final answer
    x = 196,892.35

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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.