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Finding the Fourth Proportional to 306,216.90, 459,418.74 and 156,562.32

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Solution

The fourth proportional to 306,216.90, 459,418.74 and 156,562.32 is: 234,891.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,216.90 : 459,418.74 = 156,562.32 : x
  2. Step 2: Convert to fraction form
    306,216.90/459,418.74 = 156,562.32/x
  3. Step 3: Cross multiply
    306,216.90x = 459,418.74 × 156,562.32
  4. Step 4: Simplify right side
    306,216.90x = 71,927,663,785.88
  5. Step 5: Solve for x
    x = 71,927,663,785.88/306,216.90
  6. Step 6: Final answer
    x = 234,891.23

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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.