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Finding the Fourth Proportional to 281,745.60, 423,055.80 and 163,647.60

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Solution

The fourth proportional to 281,745.60, 423,055.80 and 163,647.60 is: 245,725.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,745.60 : 423,055.80 = 163,647.60 : x
  2. Step 2: Convert to fraction form
    281,745.60/423,055.80 = 163,647.60/x
  3. Step 3: Cross multiply
    281,745.60x = 423,055.80 × 163,647.60
  4. Step 4: Simplify right side
    281,745.60x = 69,232,066,336.08
  5. Step 5: Solve for x
    x = 69,232,066,336.08/281,745.60
  6. Step 6: Final answer
    x = 245,725.46

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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.