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Finding the Fourth Proportional to 251,525.56, 347,097.96 and 138,348.28

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Solution

The fourth proportional to 251,525.56, 347,097.96 and 138,348.28 is: 190,916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,525.56 : 347,097.96 = 138,348.28 : x
  2. Step 2: Convert to fraction form
    251,525.56/347,097.96 = 138,348.28/x
  3. Step 3: Cross multiply
    251,525.56x = 347,097.96 × 138,348.28
  4. Step 4: Simplify right side
    251,525.56x = 48,020,405,757.51
  5. Step 5: Solve for x
    x = 48,020,405,757.51/251,525.56
  6. Step 6: Final answer
    x = 190,916.60

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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.