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Finding the Fourth Proportional to 144,998.95, 217,489.77 and 45,145.09

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Solution

The fourth proportional to 144,998.95, 217,489.77 and 45,145.09 is: 67,714.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,998.95 : 217,489.77 = 45,145.09 : x
  2. Step 2: Convert to fraction form
    144,998.95/217,489.77 = 45,145.09/x
  3. Step 3: Cross multiply
    144,998.95x = 217,489.77 × 45,145.09
  4. Step 4: Simplify right side
    144,998.95x = 9,818,595,240.73
  5. Step 5: Solve for x
    x = 9,818,595,240.73/144,998.95
  6. Step 6: Final answer
    x = 67,714.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.