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Finding the Fourth Proportional to 199,416.58, 299,012.60 and 66,225.44

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Solution

The fourth proportional to 199,416.58, 299,012.60 and 66,225.44 is: 99,300.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,416.58 : 299,012.60 = 66,225.44 : x
  2. Step 2: Convert to fraction form
    199,416.58/299,012.60 = 66,225.44/x
  3. Step 3: Cross multiply
    199,416.58x = 299,012.60 × 66,225.44
  4. Step 4: Simplify right side
    199,416.58x = 19,802,241,000.54
  5. Step 5: Solve for x
    x = 19,802,241,000.54/199,416.58
  6. Step 6: Final answer
    x = 99,300.88

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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.