Home / 442,834.74-664,355.79-143,303.22

Finding the Fourth Proportional to 442,834.74, 664,355.79 and 143,303.22

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Solution

The fourth proportional to 442,834.74, 664,355.79 and 143,303.22 is: 214,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,834.74 : 664,355.79 = 143,303.22 : x
  2. Step 2: Convert to fraction form
    442,834.74/664,355.79 = 143,303.22/x
  3. Step 3: Cross multiply
    442,834.74x = 664,355.79 × 143,303.22
  4. Step 4: Simplify right side
    442,834.74x = 95,204,323,932.64
  5. Step 5: Solve for x
    x = 95,204,323,932.64/442,834.74
  6. Step 6: Final answer
    x = 214,988.38

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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.