Home / 270,478.20-405,739.24-92,985.36

Finding the Fourth Proportional to 270,478.20, 405,739.24 and 92,985.36

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Solution

The fourth proportional to 270,478.20, 405,739.24 and 92,985.36 is: 139,485.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,478.20 : 405,739.24 = 92,985.36 : x
  2. Step 2: Convert to fraction form
    270,478.20/405,739.24 = 92,985.36/x
  3. Step 3: Cross multiply
    270,478.20x = 405,739.24 × 92,985.36
  4. Step 4: Simplify right side
    270,478.20x = 37,727,809,297.53
  5. Step 5: Solve for x
    x = 37,727,809,297.53/270,478.20
  6. Step 6: Final answer
    x = 139,485.58

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1.5x scale

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.