Home / 266,111.60-398,629.80-165,964.40

Finding the Fourth Proportional to 266,111.60, 398,629.80 and 165,964.40

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Solution

The fourth proportional to 266,111.60, 398,629.80 and 165,964.40 is: 248,611.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,111.60 : 398,629.80 = 165,964.40 : x
  2. Step 2: Convert to fraction form
    266,111.60/398,629.80 = 165,964.40/x
  3. Step 3: Cross multiply
    266,111.60x = 398,629.80 × 165,964.40
  4. Step 4: Simplify right side
    266,111.60x = 66,158,355,579.12
  5. Step 5: Solve for x
    x = 66,158,355,579.12/266,111.60
  6. Step 6: Final answer
    x = 248,611.32

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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.