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Finding the Fourth Proportional to 494,515, 682,430.70 and 268,160.68

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Solution

The fourth proportional to 494,515, 682,430.70 and 268,160.68 is: 370,061.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,515 : 682,430.70 = 268,160.68 : x
  2. Step 2: Convert to fraction form
    494,515/682,430.70 = 268,160.68/x
  3. Step 3: Cross multiply
    494,515x = 682,430.70 × 268,160.68
  4. Step 4: Simplify right side
    494,515x = 183,001,080,564.88
  5. Step 5: Solve for x
    x = 183,001,080,564.88/494,515
  6. Step 6: Final answer
    x = 370,061.74

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1.5x scale

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.