Home / 299,136.24-412,815.78-163,172.47

Finding the Fourth Proportional to 299,136.24, 412,815.78 and 163,172.47

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Solution

The fourth proportional to 299,136.24, 412,815.78 and 163,172.47 is: 225,182.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,136.24 : 412,815.78 = 163,172.47 : x
  2. Step 2: Convert to fraction form
    299,136.24/412,815.78 = 163,172.47/x
  3. Step 3: Cross multiply
    299,136.24x = 412,815.78 × 163,172.47
  4. Step 4: Simplify right side
    299,136.24x = 67,360,169,661.71
  5. Step 5: Solve for x
    x = 67,360,169,661.71/299,136.24
  6. Step 6: Final answer
    x = 225,182.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.