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Finding the Fourth Proportional to 306,352.35, 459,467.84 and 291,162.15

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Solution

The fourth proportional to 306,352.35, 459,467.84 and 291,162.15 is: 436,685.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,352.35 : 459,467.84 = 291,162.15 : x
  2. Step 2: Convert to fraction form
    306,352.35/459,467.84 = 291,162.15/x
  3. Step 3: Cross multiply
    306,352.35x = 459,467.84 × 291,162.15
  4. Step 4: Simplify right side
    306,352.35x = 133,779,642,694.45
  5. Step 5: Solve for x
    x = 133,779,642,694.45/306,352.35
  6. Step 6: Final answer
    x = 436,685.54

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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.