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Finding the Fourth Proportional to 321,958.98, 482,741.64 and 153,530.82

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Solution

The fourth proportional to 321,958.98, 482,741.64 and 153,530.82 is: 230,202.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,958.98 : 482,741.64 = 153,530.82 : x
  2. Step 2: Convert to fraction form
    321,958.98/482,741.64 = 153,530.82/x
  3. Step 3: Cross multiply
    321,958.98x = 482,741.64 × 153,530.82
  4. Step 4: Simplify right side
    321,958.98x = 74,115,719,837.34
  5. Step 5: Solve for x
    x = 74,115,719,837.34/321,958.98
  6. Step 6: Final answer
    x = 230,202.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.