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Finding the Fourth Proportional to 339,456.48, 508,409.08 and 162,087.72

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Solution

The fourth proportional to 339,456.48, 508,409.08 and 162,087.72 is: 242,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,456.48 : 508,409.08 = 162,087.72 : x
  2. Step 2: Convert to fraction form
    339,456.48/508,409.08 = 162,087.72/x
  3. Step 3: Cross multiply
    339,456.48x = 508,409.08 × 162,087.72
  4. Step 4: Simplify right side
    339,456.48x = 82,406,868,604.50
  5. Step 5: Solve for x
    x = 82,406,868,604.50/339,456.48
  6. Step 6: Final answer
    x = 242,761.22

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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.