Home / 285,080.20-393,383.96-170,336

Finding the Fourth Proportional to 285,080.20, 393,383.96 and 170,336

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Solution

The fourth proportional to 285,080.20, 393,383.96 and 170,336 is: 235,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,080.20 : 393,383.96 = 170,336 : x
  2. Step 2: Convert to fraction form
    285,080.20/393,383.96 = 170,336/x
  3. Step 3: Cross multiply
    285,080.20x = 393,383.96 × 170,336
  4. Step 4: Simplify right side
    285,080.20x = 67,007,450,210.56
  5. Step 5: Solve for x
    x = 67,007,450,210.56/285,080.20
  6. Step 6: Final answer
    x = 235,047.72

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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.