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Finding the Fourth Proportional to 355,264.72, 490,268.76 and 194,119.75

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Solution

The fourth proportional to 355,264.72, 490,268.76 and 194,119.75 is: 267,887.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,264.72 : 490,268.76 = 194,119.75 : x
  2. Step 2: Convert to fraction form
    355,264.72/490,268.76 = 194,119.75/x
  3. Step 3: Cross multiply
    355,264.72x = 490,268.76 × 194,119.75
  4. Step 4: Simplify right side
    355,264.72x = 95,170,849,124.01
  5. Step 5: Solve for x
    x = 95,170,849,124.01/355,264.72
  6. Step 6: Final answer
    x = 267,887.14

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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.