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Finding the Fourth Proportional to 252,808.55, 348,873.72 and 138,087.26

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Solution

The fourth proportional to 252,808.55, 348,873.72 and 138,087.26 is: 190,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,808.55 : 348,873.72 = 138,087.26 : x
  2. Step 2: Convert to fraction form
    252,808.55/348,873.72 = 138,087.26/x
  3. Step 3: Cross multiply
    252,808.55x = 348,873.72 × 138,087.26
  4. Step 4: Simplify right side
    252,808.55x = 48,175,016,080.81
  5. Step 5: Solve for x
    x = 48,175,016,080.81/252,808.55
  6. Step 6: Final answer
    x = 190,559.28

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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.