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Finding the Fourth Proportional to 326,765.56, 490,146.54 and 127,224.76

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Solution

The fourth proportional to 326,765.56, 490,146.54 and 127,224.76 is: 190,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,765.56 : 490,146.54 = 127,224.76 : x
  2. Step 2: Convert to fraction form
    326,765.56/490,146.54 = 127,224.76/x
  3. Step 3: Cross multiply
    326,765.56x = 490,146.54 × 127,224.76
  4. Step 4: Simplify right side
    326,765.56x = 62,358,775,916.33
  5. Step 5: Solve for x
    x = 62,358,775,916.33/326,765.56
  6. Step 6: Final answer
    x = 190,836.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.