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Finding the Fourth Proportional to 401,032.33, 553,424.75 and 219,742.79

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Solution

The fourth proportional to 401,032.33, 553,424.75 and 219,742.79 is: 303,245.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,032.33 : 553,424.75 = 219,742.79 : x
  2. Step 2: Convert to fraction form
    401,032.33/553,424.75 = 219,742.79/x
  3. Step 3: Cross multiply
    401,032.33x = 553,424.75 × 219,742.79
  4. Step 4: Simplify right side
    401,032.33x = 121,611,098,620.05
  5. Step 5: Solve for x
    x = 121,611,098,620.05/401,032.33
  6. Step 6: Final answer
    x = 303,245.12

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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.