Home / 443,314.41-665,065.02-143,771.63

Finding the Fourth Proportional to 443,314.41, 665,065.02 and 143,771.63

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Solution

The fourth proportional to 443,314.41, 665,065.02 and 143,771.63 is: 215,687.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,314.41 : 665,065.02 = 143,771.63 : x
  2. Step 2: Convert to fraction form
    443,314.41/665,065.02 = 143,771.63/x
  3. Step 3: Cross multiply
    443,314.41x = 665,065.02 × 143,771.63
  4. Step 4: Simplify right side
    443,314.41x = 95,617,481,723.12
  5. Step 5: Solve for x
    x = 95,617,481,723.12/443,314.41
  6. Step 6: Final answer
    x = 215,687.74

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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.