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Finding the Fourth Proportional to 309,278.33, 463,129.95 and 203,777.45

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Solution

The fourth proportional to 309,278.33, 463,129.95 and 203,777.45 is: 305,147.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,278.33 : 463,129.95 = 203,777.45 : x
  2. Step 2: Convert to fraction form
    309,278.33/463,129.95 = 203,777.45/x
  3. Step 3: Cross multiply
    309,278.33x = 463,129.95 × 203,777.45
  4. Step 4: Simplify right side
    309,278.33x = 94,375,440,229.63
  5. Step 5: Solve for x
    x = 94,375,440,229.63/309,278.33
  6. Step 6: Final answer
    x = 305,147.28

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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.