Home / 401,467.07-553,973.99-220,131.29

Finding the Fourth Proportional to 401,467.07, 553,973.99 and 220,131.29

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Solution

The fourth proportional to 401,467.07, 553,973.99 and 220,131.29 is: 303,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,467.07 : 553,973.99 = 220,131.29 : x
  2. Step 2: Convert to fraction form
    401,467.07/553,973.99 = 220,131.29/x
  3. Step 3: Cross multiply
    401,467.07x = 553,973.99 × 220,131.29
  4. Step 4: Simplify right side
    401,467.07x = 121,947,009,329.43
  5. Step 5: Solve for x
    x = 121,947,009,329.43/401,467.07
  6. Step 6: Final answer
    x = 303,753.45

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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.