Home / 219,722.16-303,204.31-122,907.33

Finding the Fourth Proportional to 219,722.16, 303,204.31 and 122,907.33

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Solution

The fourth proportional to 219,722.16, 303,204.31 and 122,907.33 is: 169,605.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,722.16 : 303,204.31 = 122,907.33 : x
  2. Step 2: Convert to fraction form
    219,722.16/303,204.31 = 122,907.33/x
  3. Step 3: Cross multiply
    219,722.16x = 303,204.31 × 122,907.33
  4. Step 4: Simplify right side
    219,722.16x = 37,266,031,879.32
  5. Step 5: Solve for x
    x = 37,266,031,879.32/219,722.16
  6. Step 6: Final answer
    x = 169,605.25

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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.