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Finding the Fourth Proportional to 365,967.06, 504,132.15 and 311,344.29

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Solution

The fourth proportional to 365,967.06, 504,132.15 and 311,344.29 is: 428,887.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,967.06 : 504,132.15 = 311,344.29 : x
  2. Step 2: Convert to fraction form
    365,967.06/504,132.15 = 311,344.29/x
  3. Step 3: Cross multiply
    365,967.06x = 504,132.15 × 311,344.29
  4. Step 4: Simplify right side
    365,967.06x = 156,958,666,307.92
  5. Step 5: Solve for x
    x = 156,958,666,307.92/365,967.06
  6. Step 6: Final answer
    x = 428,887.41

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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.