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Finding the Fourth Proportional to 330,654.99, 455,875.59 and 214,161.19

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Solution

The fourth proportional to 330,654.99, 455,875.59 and 214,161.19 is: 295,265.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,654.99 : 455,875.59 = 214,161.19 : x
  2. Step 2: Convert to fraction form
    330,654.99/455,875.59 = 214,161.19/x
  3. Step 3: Cross multiply
    330,654.99x = 455,875.59 × 214,161.19
  4. Step 4: Simplify right side
    330,654.99x = 97,630,858,846.35
  5. Step 5: Solve for x
    x = 97,630,858,846.35/330,654.99
  6. Step 6: Final answer
    x = 295,265.04

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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.