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Finding the Fourth Proportional to 246,404.80, 340,038.52 and 138,974.59

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Solution

The fourth proportional to 246,404.80, 340,038.52 and 138,974.59 is: 191,784.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,404.80 : 340,038.52 = 138,974.59 : x
  2. Step 2: Convert to fraction form
    246,404.80/340,038.52 = 138,974.59/x
  3. Step 3: Cross multiply
    246,404.80x = 340,038.52 × 138,974.59
  4. Step 4: Simplify right side
    246,404.80x = 47,256,713,901.21
  5. Step 5: Solve for x
    x = 47,256,713,901.21/246,404.80
  6. Step 6: Final answer
    x = 191,784.88

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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.