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Finding the Fourth Proportional to 271,447.10, 407,303.13 and 191,995.55

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Solution

The fourth proportional to 271,447.10, 407,303.13 and 191,995.55 is: 288,087.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,447.10 : 407,303.13 = 191,995.55 : x
  2. Step 2: Convert to fraction form
    271,447.10/407,303.13 = 191,995.55/x
  3. Step 3: Cross multiply
    271,447.10x = 407,303.13 × 191,995.55
  4. Step 4: Simplify right side
    271,447.10x = 78,200,388,461.07
  5. Step 5: Solve for x
    x = 78,200,388,461.07/271,447.10
  6. Step 6: Final answer
    x = 288,087.03

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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.