Home / 287,723.64-397,050.96-166,857.36

Finding the Fourth Proportional to 287,723.64, 397,050.96 and 166,857.36

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Solution

The fourth proportional to 287,723.64, 397,050.96 and 166,857.36 is: 230,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,723.64 : 397,050.96 = 166,857.36 : x
  2. Step 2: Convert to fraction form
    287,723.64/397,050.96 = 166,857.36/x
  3. Step 3: Cross multiply
    287,723.64x = 397,050.96 × 166,857.36
  4. Step 4: Simplify right side
    287,723.64x = 66,250,874,971.07
  5. Step 5: Solve for x
    x = 66,250,874,971.07/287,723.64
  6. Step 6: Final answer
    x = 230,258.71

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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.