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Finding the Fourth Proportional to 290,968.94, 436,344.50 and 101,380.64

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Solution

The fourth proportional to 290,968.94, 436,344.50 and 101,380.64 is: 152,033.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,968.94 : 436,344.50 = 101,380.64 : x
  2. Step 2: Convert to fraction form
    290,968.94/436,344.50 = 101,380.64/x
  3. Step 3: Cross multiply
    290,968.94x = 436,344.50 × 101,380.64
  4. Step 4: Simplify right side
    290,968.94x = 44,236,882,742.21
  5. Step 5: Solve for x
    x = 44,236,882,742.21/290,968.94
  6. Step 6: Final answer
    x = 152,033.01

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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.