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Finding the Fourth Proportional to 340,960.79, 511,330.39 and 161,018.35

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Solution

The fourth proportional to 340,960.79, 511,330.39 and 161,018.35 is: 241,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,960.79 : 511,330.39 = 161,018.35 : x
  2. Step 2: Convert to fraction form
    340,960.79/511,330.39 = 161,018.35/x
  3. Step 3: Cross multiply
    340,960.79x = 511,330.39 × 161,018.35
  4. Step 4: Simplify right side
    340,960.79x = 82,333,574,021.78
  5. Step 5: Solve for x
    x = 82,333,574,021.78/340,960.79
  6. Step 6: Final answer
    x = 241,475.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.