Home / 306,669.35-459,621.30-156,969.20

Finding the Fourth Proportional to 306,669.35, 459,621.30 and 156,969.20

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Solution

The fourth proportional to 306,669.35, 459,621.30 and 156,969.20 is: 235,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,669.35 : 459,621.30 = 156,969.20 : x
  2. Step 2: Convert to fraction form
    306,669.35/459,621.30 = 156,969.20/x
  3. Step 3: Cross multiply
    306,669.35x = 459,621.30 × 156,969.20
  4. Step 4: Simplify right side
    306,669.35x = 72,146,387,763.96
  5. Step 5: Solve for x
    x = 72,146,387,763.96/306,669.35
  6. Step 6: Final answer
    x = 235,257.90

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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.