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Finding the Fourth Proportional to 210,243.43, 315,457.53 and 110,380.42

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Solution

The fourth proportional to 210,243.43, 315,457.53 and 110,380.42 is: 165,619.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,243.43 : 315,457.53 = 110,380.42 : x
  2. Step 2: Convert to fraction form
    210,243.43/315,457.53 = 110,380.42/x
  3. Step 3: Cross multiply
    210,243.43x = 315,457.53 × 110,380.42
  4. Step 4: Simplify right side
    210,243.43x = 34,820,334,653.56
  5. Step 5: Solve for x
    x = 34,820,334,653.56/210,243.43
  6. Step 6: Final answer
    x = 165,619.13

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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.