Home / 388,621.06-582,681.19-163,921.39

Finding the Fourth Proportional to 388,621.06, 582,681.19 and 163,921.39

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Solution

The fourth proportional to 388,621.06, 582,681.19 and 163,921.39 is: 245,776.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,621.06 : 582,681.19 = 163,921.39 : x
  2. Step 2: Convert to fraction form
    388,621.06/582,681.19 = 163,921.39/x
  3. Step 3: Cross multiply
    388,621.06x = 582,681.19 × 163,921.39
  4. Step 4: Simplify right side
    388,621.06x = 95,513,910,591.65
  5. Step 5: Solve for x
    x = 95,513,910,591.65/388,621.06
  6. Step 6: Final answer
    x = 245,776.47

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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.