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Finding the Fourth Proportional to 207,903.01, 312,380.04 and 199,495.48

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Solution

The fourth proportional to 207,903.01, 312,380.04 and 199,495.48 is: 299,747.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,903.01 : 312,380.04 = 199,495.48 : x
  2. Step 2: Convert to fraction form
    207,903.01/312,380.04 = 199,495.48/x
  3. Step 3: Cross multiply
    207,903.01x = 312,380.04 × 199,495.48
  4. Step 4: Simplify right side
    207,903.01x = 62,318,406,022.22
  5. Step 5: Solve for x
    x = 62,318,406,022.22/207,903.01
  6. Step 6: Final answer
    x = 299,747.49

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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.