Home / 282,997.41-390,479.78-162,176.60

Finding the Fourth Proportional to 282,997.41, 390,479.78 and 162,176.60

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Solution

The fourth proportional to 282,997.41, 390,479.78 and 162,176.60 is: 223,771.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,997.41 : 390,479.78 = 162,176.60 : x
  2. Step 2: Convert to fraction form
    282,997.41/390,479.78 = 162,176.60/x
  3. Step 3: Cross multiply
    282,997.41x = 390,479.78 × 162,176.60
  4. Step 4: Simplify right side
    282,997.41x = 63,326,681,542.19
  5. Step 5: Solve for x
    x = 63,326,681,542.19/282,997.41
  6. Step 6: Final answer
    x = 223,771.24

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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.