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Finding the Fourth Proportional to 309,036.29, 465,660.14 and 254,106.86

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Solution

The fourth proportional to 309,036.29, 465,660.14 and 254,106.86 is: 382,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,036.29 : 465,660.14 = 254,106.86 : x
  2. Step 2: Convert to fraction form
    309,036.29/465,660.14 = 254,106.86/x
  3. Step 3: Cross multiply
    309,036.29x = 465,660.14 × 254,106.86
  4. Step 4: Simplify right side
    309,036.29x = 118,327,432,403.73
  5. Step 5: Solve for x
    x = 118,327,432,403.73/309,036.29
  6. Step 6: Final answer
    x = 382,891.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.