Home / 287,485.11-396,730.08-160,165.26

Finding the Fourth Proportional to 287,485.11, 396,730.08 and 160,165.26

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Solution

The fourth proportional to 287,485.11, 396,730.08 and 160,165.26 is: 221,028.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,485.11 : 396,730.08 = 160,165.26 : x
  2. Step 2: Convert to fraction form
    287,485.11/396,730.08 = 160,165.26/x
  3. Step 3: Cross multiply
    287,485.11x = 396,730.08 × 160,165.26
  4. Step 4: Simplify right side
    287,485.11x = 63,542,376,413.02
  5. Step 5: Solve for x
    x = 63,542,376,413.02/287,485.11
  6. Step 6: Final answer
    x = 221,028.41

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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.