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Finding the Fourth Proportional to 300,855.30, 451,282.95 and 134,643.30

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Solution

The fourth proportional to 300,855.30, 451,282.95 and 134,643.30 is: 201,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,855.30 : 451,282.95 = 134,643.30 : x
  2. Step 2: Convert to fraction form
    300,855.30/451,282.95 = 134,643.30/x
  3. Step 3: Cross multiply
    300,855.30x = 451,282.95 × 134,643.30
  4. Step 4: Simplify right side
    300,855.30x = 60,762,225,621.74
  5. Step 5: Solve for x
    x = 60,762,225,621.74/300,855.30
  6. Step 6: Final answer
    x = 201,964.95

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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.