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Finding the Fourth Proportional to 340,630.16, 511,007.24 and 115,979.12

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Solution

The fourth proportional to 340,630.16, 511,007.24 and 115,979.12 is: 173,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,630.16 : 511,007.24 = 115,979.12 : x
  2. Step 2: Convert to fraction form
    340,630.16/511,007.24 = 115,979.12/x
  3. Step 3: Cross multiply
    340,630.16x = 511,007.24 × 115,979.12
  4. Step 4: Simplify right side
    340,630.16x = 59,266,170,008.83
  5. Step 5: Solve for x
    x = 59,266,170,008.83/340,630.16
  6. Step 6: Final answer
    x = 173,989.79

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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.