Home / 306,811.05-459,932.40-156,720.30

Finding the Fourth Proportional to 306,811.05, 459,932.40 and 156,720.30

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Solution

The fourth proportional to 306,811.05, 459,932.40 and 156,720.30 is: 234,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,811.05 : 459,932.40 = 156,720.30 : x
  2. Step 2: Convert to fraction form
    306,811.05/459,932.40 = 156,720.30/x
  3. Step 3: Cross multiply
    306,811.05x = 459,932.40 × 156,720.30
  4. Step 4: Simplify right side
    306,811.05x = 72,080,743,707.72
  5. Step 5: Solve for x
    x = 72,080,743,707.72/306,811.05
  6. Step 6: Final answer
    x = 234,935.29

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1.5x scale

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.