Home / 287,368.20-396,580.44-160,043.80

Finding the Fourth Proportional to 287,368.20, 396,580.44 and 160,043.80

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Solution

The fourth proportional to 287,368.20, 396,580.44 and 160,043.80 is: 220,867.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,368.20 : 396,580.44 = 160,043.80 : x
  2. Step 2: Convert to fraction form
    287,368.20/396,580.44 = 160,043.80/x
  3. Step 3: Cross multiply
    287,368.20x = 396,580.44 × 160,043.80
  4. Step 4: Simplify right side
    287,368.20x = 63,470,240,623.27
  5. Step 5: Solve for x
    x = 63,470,240,623.27/287,368.20
  6. Step 6: Final answer
    x = 220,867.31

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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.