Home / 268,394.04-402,340.77-90,777.44

Finding the Fourth Proportional to 268,394.04, 402,340.77 and 90,777.44

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Solution

The fourth proportional to 268,394.04, 402,340.77 and 90,777.44 is: 136,081.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,394.04 : 402,340.77 = 90,777.44 : x
  2. Step 2: Convert to fraction form
    268,394.04/402,340.77 = 90,777.44/x
  3. Step 3: Cross multiply
    268,394.04x = 402,340.77 × 90,777.44
  4. Step 4: Simplify right side
    268,394.04x = 36,523,466,114.08
  5. Step 5: Solve for x
    x = 36,523,466,114.08/268,394.04
  6. Step 6: Final answer
    x = 136,081.51

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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.