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Finding the Fourth Proportional to 246,403.80, 340,037.16 and 138,973.59

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Solution

The fourth proportional to 246,403.80, 340,037.16 and 138,973.59 is: 191,783.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,403.80 : 340,037.16 = 138,973.59 : x
  2. Step 2: Convert to fraction form
    246,403.80/340,037.16 = 138,973.59/x
  3. Step 3: Cross multiply
    246,403.80x = 340,037.16 × 138,973.59
  4. Step 4: Simplify right side
    246,403.80x = 47,256,184,858.60
  5. Step 5: Solve for x
    x = 47,256,184,858.60/246,403.80
  6. Step 6: Final answer
    x = 191,783.51

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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.