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Finding the Fourth Proportional to 252,129.58, 347,933.68 and 138,952.33

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Solution

The fourth proportional to 252,129.58, 347,933.68 and 138,952.33 is: 191,751.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,129.58 : 347,933.68 = 138,952.33 : x
  2. Step 2: Convert to fraction form
    252,129.58/347,933.68 = 138,952.33/x
  3. Step 3: Cross multiply
    252,129.58x = 347,933.68 × 138,952.33
  4. Step 4: Simplify right side
    252,129.58x = 48,346,194,304.26
  5. Step 5: Solve for x
    x = 48,346,194,304.26/252,129.58
  6. Step 6: Final answer
    x = 191,751.38

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1.5x scale

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.