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Finding the Fourth Proportional to 449,435.76, 620,224.56 and 248,231.76

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Solution

The fourth proportional to 449,435.76, 620,224.56 and 248,231.76 is: 342,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,435.76 : 620,224.56 = 248,231.76 : x
  2. Step 2: Convert to fraction form
    449,435.76/620,224.56 = 248,231.76/x
  3. Step 3: Cross multiply
    449,435.76x = 620,224.56 × 248,231.76
  4. Step 4: Simplify right side
    449,435.76x = 153,959,434,124.03
  5. Step 5: Solve for x
    x = 153,959,434,124.03/449,435.76
  6. Step 6: Final answer
    x = 342,561.60

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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.