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Finding the Fourth Proportional to 252,080.72, 347,888.25 and 138,903.47

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Solution

The fourth proportional to 252,080.72, 347,888.25 and 138,903.47 is: 191,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,080.72 : 347,888.25 = 138,903.47 : x
  2. Step 2: Convert to fraction form
    252,080.72/347,888.25 = 138,903.47/x
  3. Step 3: Cross multiply
    252,080.72x = 347,888.25 × 138,903.47
  4. Step 4: Simplify right side
    252,080.72x = 48,322,884,662.37
  5. Step 5: Solve for x
    x = 48,322,884,662.37/252,080.72
  6. Step 6: Final answer
    x = 191,696.08

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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.