Home / 299,885.08-449,901.50-211,311.60

Finding the Fourth Proportional to 299,885.08, 449,901.50 and 211,311.60

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Solution

The fourth proportional to 299,885.08, 449,901.50 and 211,311.60 is: 317,019.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,885.08 : 449,901.50 = 211,311.60 : x
  2. Step 2: Convert to fraction form
    299,885.08/449,901.50 = 211,311.60/x
  3. Step 3: Cross multiply
    299,885.08x = 449,901.50 × 211,311.60
  4. Step 4: Simplify right side
    299,885.08x = 95,069,405,807.40
  5. Step 5: Solve for x
    x = 95,069,405,807.40/299,885.08
  6. Step 6: Final answer
    x = 317,019.46

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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.