Home / 280,166.36-386,576.70-166,999.64

Finding the Fourth Proportional to 280,166.36, 386,576.70 and 166,999.64

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Solution

The fourth proportional to 280,166.36, 386,576.70 and 166,999.64 is: 230,427.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,166.36 : 386,576.70 = 166,999.64 : x
  2. Step 2: Convert to fraction form
    280,166.36/386,576.70 = 166,999.64/x
  3. Step 3: Cross multiply
    280,166.36x = 386,576.70 × 166,999.64
  4. Step 4: Simplify right side
    280,166.36x = 64,558,169,732.39
  5. Step 5: Solve for x
    x = 64,558,169,732.39/280,166.36
  6. Step 6: Final answer
    x = 230,427.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.