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Finding the Fourth Proportional to 443,342.93, 665,107.93 and 143,800.25

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Solution

The fourth proportional to 443,342.93, 665,107.93 and 143,800.25 is: 215,730.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,342.93 : 665,107.93 = 143,800.25 : x
  2. Step 2: Convert to fraction form
    443,342.93/665,107.93 = 143,800.25/x
  3. Step 3: Cross multiply
    443,342.93x = 665,107.93 × 143,800.25
  4. Step 4: Simplify right side
    443,342.93x = 95,642,684,229.21
  5. Step 5: Solve for x
    x = 95,642,684,229.21/443,342.93
  6. Step 6: Final answer
    x = 215,730.71

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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.