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Finding the Fourth Proportional to 243,755.64, 336,383.55 and 136,327.50

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Solution

The fourth proportional to 243,755.64, 336,383.55 and 136,327.50 is: 188,132.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,755.64 : 336,383.55 = 136,327.50 : x
  2. Step 2: Convert to fraction form
    243,755.64/336,383.55 = 136,327.50/x
  3. Step 3: Cross multiply
    243,755.64x = 336,383.55 × 136,327.50
  4. Step 4: Simplify right side
    243,755.64x = 45,858,328,412.63
  5. Step 5: Solve for x
    x = 45,858,328,412.63/243,755.64
  6. Step 6: Final answer
    x = 188,132.38

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1.5x scale

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.