Home / 306,262.98-459,358.02-81,640.26

Finding the Fourth Proportional to 306,262.98, 459,358.02 and 81,640.26

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Solution

The fourth proportional to 306,262.98, 459,358.02 and 81,640.26 is: 122,450.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,262.98 : 459,358.02 = 81,640.26 : x
  2. Step 2: Convert to fraction form
    306,262.98/459,358.02 = 81,640.26/x
  3. Step 3: Cross multiply
    306,262.98x = 459,358.02 × 81,640.26
  4. Step 4: Simplify right side
    306,262.98x = 37,502,108,185.89
  5. Step 5: Solve for x
    x = 37,502,108,185.89/306,262.98
  6. Step 6: Final answer
    x = 122,450.67

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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.