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Finding the Fourth Proportional to 401,464.82, 553,970.88 and 220,129.04

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Solution

The fourth proportional to 401,464.82, 553,970.88 and 220,129.04 is: 303,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,464.82 : 553,970.88 = 220,129.04 : x
  2. Step 2: Convert to fraction form
    401,464.82/553,970.88 = 220,129.04/x
  3. Step 3: Cross multiply
    401,464.82x = 553,970.88 × 220,129.04
  4. Step 4: Simplify right side
    401,464.82x = 121,945,079,387.28
  5. Step 5: Solve for x
    x = 121,945,079,387.28/401,464.82
  6. Step 6: Final answer
    x = 303,750.35

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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.