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Finding the Fourth Proportional to 252,070.38, 347,858.19 and 138,893.22

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Solution

The fourth proportional to 252,070.38, 347,858.19 and 138,893.22 is: 191,673.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,070.38 : 347,858.19 = 138,893.22 : x
  2. Step 2: Convert to fraction form
    252,070.38/347,858.19 = 138,893.22/x
  3. Step 3: Cross multiply
    252,070.38x = 347,858.19 × 138,893.22
  4. Step 4: Simplify right side
    252,070.38x = 48,315,144,112.47
  5. Step 5: Solve for x
    x = 48,315,144,112.47/252,070.38
  6. Step 6: Final answer
    x = 191,673.23

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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.