Home / 306,310.29-459,404.87-291,120.15

Finding the Fourth Proportional to 306,310.29, 459,404.87 and 291,120.15

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Solution

The fourth proportional to 306,310.29, 459,404.87 and 291,120.15 is: 436,622.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,310.29 : 459,404.87 = 291,120.15 : x
  2. Step 2: Convert to fraction form
    306,310.29/459,404.87 = 291,120.15/x
  3. Step 3: Cross multiply
    306,310.29x = 459,404.87 × 291,120.15
  4. Step 4: Simplify right side
    306,310.29x = 133,742,014,932.30
  5. Step 5: Solve for x
    x = 133,742,014,932.30/306,310.29
  6. Step 6: Final answer
    x = 436,622.67

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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.