Home / 281,731.60-423,034.80-163,633.60

Finding the Fourth Proportional to 281,731.60, 423,034.80 and 163,633.60

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Solution

The fourth proportional to 281,731.60, 423,034.80 and 163,633.60 is: 245,704.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,731.60 : 423,034.80 = 163,633.60 : x
  2. Step 2: Convert to fraction form
    281,731.60/423,034.80 = 163,633.60/x
  3. Step 3: Cross multiply
    281,731.60x = 423,034.80 × 163,633.60
  4. Step 4: Simplify right side
    281,731.60x = 69,222,707,249.28
  5. Step 5: Solve for x
    x = 69,222,707,249.28/281,731.60
  6. Step 6: Final answer
    x = 245,704.45

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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.