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Finding the Fourth Proportional to 287,999.41, 397,439.44 and 160,675.03

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Solution

The fourth proportional to 287,999.41, 397,439.44 and 160,675.03 is: 221,731.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,999.41 : 397,439.44 = 160,675.03 : x
  2. Step 2: Convert to fraction form
    287,999.41/397,439.44 = 160,675.03/x
  3. Step 3: Cross multiply
    287,999.41x = 397,439.44 × 160,675.03
  4. Step 4: Simplify right side
    287,999.41x = 63,858,593,141.81
  5. Step 5: Solve for x
    x = 63,858,593,141.81/287,999.41
  6. Step 6: Final answer
    x = 221,731.68

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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.