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Finding the Fourth Proportional to 330,077.88, 455,525.10 and 186,869.88

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Solution

The fourth proportional to 330,077.88, 455,525.10 and 186,869.88 is: 257,890.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,077.88 : 455,525.10 = 186,869.88 : x
  2. Step 2: Convert to fraction form
    330,077.88/455,525.10 = 186,869.88/x
  3. Step 3: Cross multiply
    330,077.88x = 455,525.10 × 186,869.88
  4. Step 4: Simplify right side
    330,077.88x = 85,123,920,773.99
  5. Step 5: Solve for x
    x = 85,123,920,773.99/330,077.88
  6. Step 6: Final answer
    x = 257,890.41

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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.