Home / 306,810.05-459,930.90-156,719.30

Finding the Fourth Proportional to 306,810.05, 459,930.90 and 156,719.30

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Solution

The fourth proportional to 306,810.05, 459,930.90 and 156,719.30 is: 234,933.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,810.05 : 459,930.90 = 156,719.30 : x
  2. Step 2: Convert to fraction form
    306,810.05/459,930.90 = 156,719.30/x
  3. Step 3: Cross multiply
    306,810.05x = 459,930.90 × 156,719.30
  4. Step 4: Simplify right side
    306,810.05x = 72,080,046,984.41
  5. Step 5: Solve for x
    x = 72,080,046,984.41/306,810.05
  6. Step 6: Final answer
    x = 234,933.79

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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.