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Finding the Fourth Proportional to 330,400.82, 455,981.03 and 185,204.29

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Solution

The fourth proportional to 330,400.82, 455,981.03 and 185,204.29 is: 255,597.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,400.82 : 455,981.03 = 185,204.29 : x
  2. Step 2: Convert to fraction form
    330,400.82/455,981.03 = 185,204.29/x
  3. Step 3: Cross multiply
    330,400.82x = 455,981.03 × 185,204.29
  4. Step 4: Simplify right side
    330,400.82x = 84,449,643,203.19
  5. Step 5: Solve for x
    x = 84,449,643,203.19/330,400.82
  6. Step 6: Final answer
    x = 255,597.56

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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.