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Finding the Fourth Proportional to 100,858.49, 151,304.13 and 29,788.31

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Solution

The fourth proportional to 100,858.49, 151,304.13 and 29,788.31 is: 44,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,858.49 : 151,304.13 = 29,788.31 : x
  2. Step 2: Convert to fraction form
    100,858.49/151,304.13 = 29,788.31/x
  3. Step 3: Cross multiply
    100,858.49x = 151,304.13 × 29,788.31
  4. Step 4: Simplify right side
    100,858.49x = 4,507,093,572.20
  5. Step 5: Solve for x
    x = 4,507,093,572.20/100,858.49
  6. Step 6: Final answer
    x = 44,687.30

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1.5x scale

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.