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Finding the Fourth Proportional to 340,973.72, 511,481.05 and 104,318.45

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Solution

The fourth proportional to 340,973.72, 511,481.05 and 104,318.45 is: 156,483.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,973.72 : 511,481.05 = 104,318.45 : x
  2. Step 2: Convert to fraction form
    340,973.72/511,481.05 = 104,318.45/x
  3. Step 3: Cross multiply
    340,973.72x = 511,481.05 × 104,318.45
  4. Step 4: Simplify right side
    340,973.72x = 53,356,907,261.38
  5. Step 5: Solve for x
    x = 53,356,907,261.38/340,973.72
  6. Step 6: Final answer
    x = 156,483.93

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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.