Home / 268,484.20-402,698.58-90,986.62

Finding the Fourth Proportional to 268,484.20, 402,698.58 and 90,986.62

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Solution

The fourth proportional to 268,484.20, 402,698.58 and 90,986.62 is: 136,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,484.20 : 402,698.58 = 90,986.62 : x
  2. Step 2: Convert to fraction form
    268,484.20/402,698.58 = 90,986.62/x
  3. Step 3: Cross multiply
    268,484.20x = 402,698.58 × 90,986.62
  4. Step 4: Simplify right side
    268,484.20x = 36,640,182,673.00
  5. Step 5: Solve for x
    x = 36,640,182,673.00/268,484.20
  6. Step 6: Final answer
    x = 136,470.54

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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.