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Finding the Fourth Proportional to 353,367.51, 487,486.28 and 210,046.11

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Solution

The fourth proportional to 353,367.51, 487,486.28 and 210,046.11 is: 289,768.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,367.51 : 487,486.28 = 210,046.11 : x
  2. Step 2: Convert to fraction form
    353,367.51/487,486.28 = 210,046.11/x
  3. Step 3: Cross multiply
    353,367.51x = 487,486.28 × 210,046.11
  4. Step 4: Simplify right side
    353,367.51x = 102,394,595,742.14
  5. Step 5: Solve for x
    x = 102,394,595,742.14/353,367.51
  6. Step 6: Final answer
    x = 289,768.00

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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.