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Finding the Fourth Proportional to 455,624.06, 628,763.25 and 248,895.30

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Solution

The fourth proportional to 455,624.06, 628,763.25 and 248,895.30 is: 343,476.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,624.06 : 628,763.25 = 248,895.30 : x
  2. Step 2: Convert to fraction form
    455,624.06/628,763.25 = 248,895.30/x
  3. Step 3: Cross multiply
    455,624.06x = 628,763.25 × 248,895.30
  4. Step 4: Simplify right side
    455,624.06x = 156,496,217,737.73
  5. Step 5: Solve for x
    x = 156,496,217,737.73/455,624.06
  6. Step 6: Final answer
    x = 343,476.63

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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.