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Finding the Fourth Proportional to 243,648.87, 336,218.37 and 141,667.09

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Solution

The fourth proportional to 243,648.87, 336,218.37 and 141,667.09 is: 195,490.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,648.87 : 336,218.37 = 141,667.09 : x
  2. Step 2: Convert to fraction form
    243,648.87/336,218.37 = 141,667.09/x
  3. Step 3: Cross multiply
    243,648.87x = 336,218.37 × 141,667.09
  4. Step 4: Simplify right side
    243,648.87x = 47,631,078,082.44
  5. Step 5: Solve for x
    x = 47,631,078,082.44/243,648.87
  6. Step 6: Final answer
    x = 195,490.66

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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.