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Finding the Fourth Proportional to 251,506.71, 347,119.70 and 148,157.60

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Solution

The fourth proportional to 251,506.71, 347,119.70 and 148,157.60 is: 204,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,506.71 : 347,119.70 = 148,157.60 : x
  2. Step 2: Convert to fraction form
    251,506.71/347,119.70 = 148,157.60/x
  3. Step 3: Cross multiply
    251,506.71x = 347,119.70 × 148,157.60
  4. Step 4: Simplify right side
    251,506.71x = 51,428,419,929.12
  5. Step 5: Solve for x
    x = 51,428,419,929.12/251,506.71
  6. Step 6: Final answer
    x = 204,481.30

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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.