Home / 442,989.36-664,549.25-143,370.36

Finding the Fourth Proportional to 442,989.36, 664,549.25 and 143,370.36

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Solution

The fourth proportional to 442,989.36, 664,549.25 and 143,370.36 is: 215,076.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,989.36 : 664,549.25 = 143,370.36 : x
  2. Step 2: Convert to fraction form
    442,989.36/664,549.25 = 143,370.36/x
  3. Step 3: Cross multiply
    442,989.36x = 664,549.25 × 143,370.36
  4. Step 4: Simplify right side
    442,989.36x = 95,276,665,210.23
  5. Step 5: Solve for x
    x = 95,276,665,210.23/442,989.36
  6. Step 6: Final answer
    x = 215,076.64

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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.