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Finding the Fourth Proportional to 340,665.66, 511,078.32 and 104,008.35

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Solution

The fourth proportional to 340,665.66, 511,078.32 and 104,008.35 is: 156,036.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,665.66 : 511,078.32 = 104,008.35 : x
  2. Step 2: Convert to fraction form
    340,665.66/511,078.32 = 104,008.35/x
  3. Step 3: Cross multiply
    340,665.66x = 511,078.32 × 104,008.35
  4. Step 4: Simplify right side
    340,665.66x = 53,156,412,783.97
  5. Step 5: Solve for x
    x = 53,156,412,783.97/340,665.66
  6. Step 6: Final answer
    x = 156,036.90

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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.