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Finding the Fourth Proportional to 330,333.30, 455,932.53 and 217,166.58

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Solution

The fourth proportional to 330,333.30, 455,932.53 and 217,166.58 is: 299,737.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,333.30 : 455,932.53 = 217,166.58 : x
  2. Step 2: Convert to fraction form
    330,333.30/455,932.53 = 217,166.58/x
  3. Step 3: Cross multiply
    330,333.30x = 455,932.53 × 217,166.58
  4. Step 4: Simplify right side
    330,333.30x = 99,013,308,250.85
  5. Step 5: Solve for x
    x = 99,013,308,250.85/330,333.30
  6. Step 6: Final answer
    x = 299,737.59

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1.5x scale

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.