Home / 268,474.20-402,683.58-90,976.59

Finding the Fourth Proportional to 268,474.20, 402,683.58 and 90,976.59

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Solution

The fourth proportional to 268,474.20, 402,683.58 and 90,976.59 is: 136,455.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,474.20 : 402,683.58 = 90,976.59 : x
  2. Step 2: Convert to fraction form
    268,474.20/402,683.58 = 90,976.59/x
  3. Step 3: Cross multiply
    268,474.20x = 402,683.58 × 90,976.59
  4. Step 4: Simplify right side
    268,474.20x = 36,634,778,957.39
  5. Step 5: Solve for x
    x = 36,634,778,957.39/268,474.20
  6. Step 6: Final answer
    x = 136,455.49

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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.