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Finding the Fourth Proportional to 339,985.82, 510,089.68 and 162,506.66

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Solution

The fourth proportional to 339,985.82, 510,089.68 and 162,506.66 is: 243,813.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,985.82 : 510,089.68 = 162,506.66 : x
  2. Step 2: Convert to fraction form
    339,985.82/510,089.68 = 162,506.66/x
  3. Step 3: Cross multiply
    339,985.82x = 510,089.68 × 162,506.66
  4. Step 4: Simplify right side
    339,985.82x = 82,892,970,197.27
  5. Step 5: Solve for x
    x = 82,892,970,197.27/339,985.82
  6. Step 6: Final answer
    x = 243,813.02

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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.