Home / 442,922.40-664,297.20-143,330.40

Finding the Fourth Proportional to 442,922.40, 664,297.20 and 143,330.40

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Solution

The fourth proportional to 442,922.40, 664,297.20 and 143,330.40 is: 214,967.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,922.40 : 664,297.20 = 143,330.40 : x
  2. Step 2: Convert to fraction form
    442,922.40/664,297.20 = 143,330.40/x
  3. Step 3: Cross multiply
    442,922.40x = 664,297.20 × 143,330.40
  4. Step 4: Simplify right side
    442,922.40x = 95,213,983,394.88
  5. Step 5: Solve for x
    x = 95,213,983,394.88/442,922.40
  6. Step 6: Final answer
    x = 214,967.64

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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.