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Finding the Fourth Proportional to 306,285.44, 459,450.06 and 81,644.72

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Solution

The fourth proportional to 306,285.44, 459,450.06 and 81,644.72 is: 122,472.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,285.44 : 459,450.06 = 81,644.72 : x
  2. Step 2: Convert to fraction form
    306,285.44/459,450.06 = 81,644.72/x
  3. Step 3: Cross multiply
    306,285.44x = 459,450.06 × 81,644.72
  4. Step 4: Simplify right side
    306,285.44x = 37,511,671,094.46
  5. Step 5: Solve for x
    x = 37,511,671,094.46/306,285.44
  6. Step 6: Final answer
    x = 122,472.92

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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.