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Finding the Fourth Proportional to 281,971.72, 388,802.10 and 179,860.60

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Solution

The fourth proportional to 281,971.72, 388,802.10 and 179,860.60 is: 248,004.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,971.72 : 388,802.10 = 179,860.60 : x
  2. Step 2: Convert to fraction form
    281,971.72/388,802.10 = 179,860.60/x
  3. Step 3: Cross multiply
    281,971.72x = 388,802.10 × 179,860.60
  4. Step 4: Simplify right side
    281,971.72x = 69,930,178,987.26
  5. Step 5: Solve for x
    x = 69,930,178,987.26/281,971.72
  6. Step 6: Final answer
    x = 248,004.23

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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.