Home / 287,541.45-396,808.77-166,754.35

Finding the Fourth Proportional to 287,541.45, 396,808.77 and 166,754.35

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Solution

The fourth proportional to 287,541.45, 396,808.77 and 166,754.35 is: 230,121.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,541.45 : 396,808.77 = 166,754.35 : x
  2. Step 2: Convert to fraction form
    287,541.45/396,808.77 = 166,754.35/x
  3. Step 3: Cross multiply
    287,541.45x = 396,808.77 × 166,754.35
  4. Step 4: Simplify right side
    287,541.45x = 66,169,586,531.61
  5. Step 5: Solve for x
    x = 66,169,586,531.61/287,541.45
  6. Step 6: Final answer
    x = 230,121.91

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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.