Home / 258,815.47-357,072.91-149,860.34

Finding the Fourth Proportional to 258,815.47, 357,072.91 and 149,860.34

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Solution

The fourth proportional to 258,815.47, 357,072.91 and 149,860.34 is: 206,753.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,815.47 : 357,072.91 = 149,860.34 : x
  2. Step 2: Convert to fraction form
    258,815.47/357,072.91 = 149,860.34/x
  3. Step 3: Cross multiply
    258,815.47x = 357,072.91 × 149,860.34
  4. Step 4: Simplify right side
    258,815.47x = 53,511,068,215.42
  5. Step 5: Solve for x
    x = 53,511,068,215.42/258,815.47
  6. Step 6: Final answer
    x = 206,753.75

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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.