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Finding the Fourth Proportional to 248,458.92, 372,636 and 79,994.31

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Solution

The fourth proportional to 248,458.92, 372,636 and 79,994.31 is: 119,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,458.92 : 372,636 = 79,994.31 : x
  2. Step 2: Convert to fraction form
    248,458.92/372,636 = 79,994.31/x
  3. Step 3: Cross multiply
    248,458.92x = 372,636 × 79,994.31
  4. Step 4: Simplify right side
    248,458.92x = 29,808,759,701.16
  5. Step 5: Solve for x
    x = 29,808,759,701.16/248,458.92
  6. Step 6: Final answer
    x = 119,974.60

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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.