Home / 442,975.40-664,463.10-162,456.20

Finding the Fourth Proportional to 442,975.40, 664,463.10 and 162,456.20

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Solution

The fourth proportional to 442,975.40, 664,463.10 and 162,456.20 is: 243,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,975.40 : 664,463.10 = 162,456.20 : x
  2. Step 2: Convert to fraction form
    442,975.40/664,463.10 = 162,456.20/x
  3. Step 3: Cross multiply
    442,975.40x = 664,463.10 × 162,456.20
  4. Step 4: Simplify right side
    442,975.40x = 107,946,150,266.22
  5. Step 5: Solve for x
    x = 107,946,150,266.22/442,975.40
  6. Step 6: Final answer
    x = 243,684.30

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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.