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Finding the Fourth Proportional to 207,703.63, 311,585.42 and 65,500.57

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Solution

The fourth proportional to 207,703.63, 311,585.42 and 65,500.57 is: 98,260.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,703.63 : 311,585.42 = 65,500.57 : x
  2. Step 2: Convert to fraction form
    207,703.63/311,585.42 = 65,500.57/x
  3. Step 3: Cross multiply
    207,703.63x = 311,585.42 × 65,500.57
  4. Step 4: Simplify right side
    207,703.63x = 20,409,022,613.69
  5. Step 5: Solve for x
    x = 20,409,022,613.69/207,703.63
  6. Step 6: Final answer
    x = 98,260.31

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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.