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Finding the Fourth Proportional to 246,291.68, 339,875.72 and 138,860.78

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Solution

The fourth proportional to 246,291.68, 339,875.72 and 138,860.78 is: 191,624.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,291.68 : 339,875.72 = 138,860.78 : x
  2. Step 2: Convert to fraction form
    246,291.68/339,875.72 = 138,860.78/x
  3. Step 3: Cross multiply
    246,291.68x = 339,875.72 × 138,860.78
  4. Step 4: Simplify right side
    246,291.68x = 47,195,407,582.26
  5. Step 5: Solve for x
    x = 47,195,407,582.26/246,291.68
  6. Step 6: Final answer
    x = 191,624.04

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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.