Home / 443,438.28-664,984.86-143,846.40

Finding the Fourth Proportional to 443,438.28, 664,984.86 and 143,846.40

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Solution

The fourth proportional to 443,438.28, 664,984.86 and 143,846.40 is: 215,713.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,438.28 : 664,984.86 = 143,846.40 : x
  2. Step 2: Convert to fraction form
    443,438.28/664,984.86 = 143,846.40/x
  3. Step 3: Cross multiply
    443,438.28x = 664,984.86 × 143,846.40
  4. Step 4: Simplify right side
    443,438.28x = 95,655,678,165.50
  5. Step 5: Solve for x
    x = 95,655,678,165.50/443,438.28
  6. Step 6: Final answer
    x = 215,713.62

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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.