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Finding the Fourth Proportional to 443,365.94, 665,142.30 and 143,823.12

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Solution

The fourth proportional to 443,365.94, 665,142.30 and 143,823.12 is: 215,764.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,365.94 : 665,142.30 = 143,823.12 : x
  2. Step 2: Convert to fraction form
    443,365.94/665,142.30 = 143,823.12/x
  3. Step 3: Cross multiply
    443,365.94x = 665,142.30 × 143,823.12
  4. Step 4: Simplify right side
    443,365.94x = 95,662,840,829.98
  5. Step 5: Solve for x
    x = 95,662,840,829.98/443,365.94
  6. Step 6: Final answer
    x = 215,764.98

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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.