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Finding the Fourth Proportional to 306,096.70, 459,145.05 and 260,825.80

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Solution

The fourth proportional to 306,096.70, 459,145.05 and 260,825.80 is: 391,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,096.70 : 459,145.05 = 260,825.80 : x
  2. Step 2: Convert to fraction form
    306,096.70/459,145.05 = 260,825.80/x
  3. Step 3: Cross multiply
    306,096.70x = 459,145.05 × 260,825.80
  4. Step 4: Simplify right side
    306,096.70x = 119,756,874,982.29
  5. Step 5: Solve for x
    x = 119,756,874,982.29/306,096.70
  6. Step 6: Final answer
    x = 391,238.70

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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.