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Finding the Fourth Proportional to 330,234.88, 455,720.12 and 179,332.96

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Solution

The fourth proportional to 330,234.88, 455,720.12 and 179,332.96 is: 247,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,234.88 : 455,720.12 = 179,332.96 : x
  2. Step 2: Convert to fraction form
    330,234.88/455,720.12 = 179,332.96/x
  3. Step 3: Cross multiply
    330,234.88x = 455,720.12 × 179,332.96
  4. Step 4: Simplify right side
    330,234.88x = 81,725,638,051.16
  5. Step 5: Solve for x
    x = 81,725,638,051.16/330,234.88
  6. Step 6: Final answer
    x = 247,477.30

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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.