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Finding the Fourth Proportional to 360,015.69, 496,449.53 and 309,196.69

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Solution

The fourth proportional to 360,015.69, 496,449.53 and 309,196.69 is: 426,371.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,015.69 : 496,449.53 = 309,196.69 : x
  2. Step 2: Convert to fraction form
    360,015.69/496,449.53 = 309,196.69/x
  3. Step 3: Cross multiply
    360,015.69x = 496,449.53 × 309,196.69
  4. Step 4: Simplify right side
    360,015.69x = 153,500,549,882.07
  5. Step 5: Solve for x
    x = 153,500,549,882.07/360,015.69
  6. Step 6: Final answer
    x = 426,371.83

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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.