Home / 268,078.26-402,209.65-168,121.42

Finding the Fourth Proportional to 268,078.26, 402,209.65 and 168,121.42

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Solution

The fourth proportional to 268,078.26, 402,209.65 and 168,121.42 is: 252,240.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,078.26 : 402,209.65 = 168,121.42 : x
  2. Step 2: Convert to fraction form
    268,078.26/402,209.65 = 168,121.42/x
  3. Step 3: Cross multiply
    268,078.26x = 402,209.65 × 168,121.42
  4. Step 4: Simplify right side
    268,078.26x = 67,620,058,962.76
  5. Step 5: Solve for x
    x = 67,620,058,962.76/268,078.26
  6. Step 6: Final answer
    x = 252,240.00

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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.