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Finding the Fourth Proportional to 246,291.39, 339,881.52 and 138,860.67

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Solution

The fourth proportional to 246,291.39, 339,881.52 and 138,860.67 is: 191,627.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,291.39 : 339,881.52 = 138,860.67 : x
  2. Step 2: Convert to fraction form
    246,291.39/339,881.52 = 138,860.67/x
  3. Step 3: Cross multiply
    246,291.39x = 339,881.52 × 138,860.67
  4. Step 4: Simplify right side
    246,291.39x = 47,196,175,587.82
  5. Step 5: Solve for x
    x = 47,196,175,587.82/246,291.39
  6. Step 6: Final answer
    x = 191,627.39

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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.