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Finding the Fourth Proportional to 243,860.93, 336,541.16 and 136,424.56

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Solution

The fourth proportional to 243,860.93, 336,541.16 and 136,424.56 is: 188,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,860.93 : 336,541.16 = 136,424.56 : x
  2. Step 2: Convert to fraction form
    243,860.93/336,541.16 = 136,424.56/x
  3. Step 3: Cross multiply
    243,860.93x = 336,541.16 × 136,424.56
  4. Step 4: Simplify right side
    243,860.93x = 45,912,477,992.18
  5. Step 5: Solve for x
    x = 45,912,477,992.18/243,860.93
  6. Step 6: Final answer
    x = 188,273.20

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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.