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Finding the Fourth Proportional to 227,980.64, 341,918.94 and 85,840.90

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Solution

The fourth proportional to 227,980.64, 341,918.94 and 85,840.90 is: 128,741.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,980.64 : 341,918.94 = 85,840.90 : x
  2. Step 2: Convert to fraction form
    227,980.64/341,918.94 = 85,840.90/x
  3. Step 3: Cross multiply
    227,980.64x = 341,918.94 × 85,840.90
  4. Step 4: Simplify right side
    227,980.64x = 29,350,629,536.65
  5. Step 5: Solve for x
    x = 29,350,629,536.65/227,980.64
  6. Step 6: Final answer
    x = 128,741.76

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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.