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Finding the Fourth Proportional to 248,338.31, 372,563 and 90,566.77

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Solution

The fourth proportional to 248,338.31, 372,563 and 90,566.77 is: 135,870.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,338.31 : 372,563 = 90,566.77 : x
  2. Step 2: Convert to fraction form
    248,338.31/372,563 = 90,566.77/x
  3. Step 3: Cross multiply
    248,338.31x = 372,563 × 90,566.77
  4. Step 4: Simplify right side
    248,338.31x = 33,741,827,531.51
  5. Step 5: Solve for x
    x = 33,741,827,531.51/248,338.31
  6. Step 6: Final answer
    x = 135,870.41

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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.