Home / 306,285.07-459,449.49-81,644.35

Finding the Fourth Proportional to 306,285.07, 459,449.49 and 81,644.35

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Solution

The fourth proportional to 306,285.07, 459,449.49 and 81,644.35 is: 122,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,285.07 : 459,449.49 = 81,644.35 : x
  2. Step 2: Convert to fraction form
    306,285.07/459,449.49 = 81,644.35/x
  3. Step 3: Cross multiply
    306,285.07x = 459,449.49 × 81,644.35
  4. Step 4: Simplify right side
    306,285.07x = 37,511,452,671.63
  5. Step 5: Solve for x
    x = 37,511,452,671.63/306,285.07
  6. Step 6: Final answer
    x = 122,472.35

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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.