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Finding the Fourth Proportional to 339,853.02, 509,779.51 and 161,820.29

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Solution

The fourth proportional to 339,853.02, 509,779.51 and 161,820.29 is: 242,730.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,853.02 : 509,779.51 = 161,820.29 : x
  2. Step 2: Convert to fraction form
    339,853.02/509,779.51 = 161,820.29/x
  3. Step 3: Cross multiply
    339,853.02x = 509,779.51 × 161,820.29
  4. Step 4: Simplify right side
    339,853.02x = 82,492,666,163.75
  5. Step 5: Solve for x
    x = 82,492,666,163.75/339,853.02
  6. Step 6: Final answer
    x = 242,730.42

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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.