Home / 442,207.40-663,441.24-142,682.36

Finding the Fourth Proportional to 442,207.40, 663,441.24 and 142,682.36

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Solution

The fourth proportional to 442,207.40, 663,441.24 and 142,682.36 is: 214,065.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,207.40 : 663,441.24 = 142,682.36 : x
  2. Step 2: Convert to fraction form
    442,207.40/663,441.24 = 142,682.36/x
  3. Step 3: Cross multiply
    442,207.40x = 663,441.24 × 142,682.36
  4. Step 4: Simplify right side
    442,207.40x = 94,661,361,844.53
  5. Step 5: Solve for x
    x = 94,661,361,844.53/442,207.40
  6. Step 6: Final answer
    x = 214,065.53

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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.