Home / 442,928.20-664,457.10-143,357.80

Finding the Fourth Proportional to 442,928.20, 664,457.10 and 143,357.80

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Solution

The fourth proportional to 442,928.20, 664,457.10 and 143,357.80 is: 215,057.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,928.20 : 664,457.10 = 143,357.80 : x
  2. Step 2: Convert to fraction form
    442,928.20/664,457.10 = 143,357.80/x
  3. Step 3: Cross multiply
    442,928.20x = 664,457.10 × 143,357.80
  4. Step 4: Simplify right side
    442,928.20x = 95,255,108,050.38
  5. Step 5: Solve for x
    x = 95,255,108,050.38/442,928.20
  6. Step 6: Final answer
    x = 215,057.67

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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.