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Finding the Fourth Proportional to 449,152.96, 619,842.38 and 255,550

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Solution

The fourth proportional to 449,152.96, 619,842.38 and 255,550 is: 352,665.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,152.96 : 619,842.38 = 255,550 : x
  2. Step 2: Convert to fraction form
    449,152.96/619,842.38 = 255,550/x
  3. Step 3: Cross multiply
    449,152.96x = 619,842.38 × 255,550
  4. Step 4: Simplify right side
    449,152.96x = 158,400,720,209
  5. Step 5: Solve for x
    x = 158,400,720,209/449,152.96
  6. Step 6: Final answer
    x = 352,665.43

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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.