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Finding the Fourth Proportional to 330,157.89, 455,617.86 and 179,254.89

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Solution

The fourth proportional to 330,157.89, 455,617.86 and 179,254.89 is: 247,371.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,157.89 : 455,617.86 = 179,254.89 : x
  2. Step 2: Convert to fraction form
    330,157.89/455,617.86 = 179,254.89/x
  3. Step 3: Cross multiply
    330,157.89x = 455,617.86 × 179,254.89
  4. Step 4: Simplify right side
    330,157.89x = 81,671,729,376.34
  5. Step 5: Solve for x
    x = 81,671,729,376.34/330,157.89
  6. Step 6: Final answer
    x = 247,371.73

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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.