Home / 252,618.72-378,705.12-102,984.18

Finding the Fourth Proportional to 252,618.72, 378,705.12 and 102,984.18

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Solution

The fourth proportional to 252,618.72, 378,705.12 and 102,984.18 is: 154,385.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,618.72 : 378,705.12 = 102,984.18 : x
  2. Step 2: Convert to fraction form
    252,618.72/378,705.12 = 102,984.18/x
  3. Step 3: Cross multiply
    252,618.72x = 378,705.12 × 102,984.18
  4. Step 4: Simplify right side
    252,618.72x = 39,000,636,245.00
  5. Step 5: Solve for x
    x = 39,000,636,245.00/252,618.72
  6. Step 6: Final answer
    x = 154,385.38

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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.