Home / 306,088.20-459,132.30-231,438.60

Finding the Fourth Proportional to 306,088.20, 459,132.30 and 231,438.60

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Solution

The fourth proportional to 306,088.20, 459,132.30 and 231,438.60 is: 347,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,088.20 : 459,132.30 = 231,438.60 : x
  2. Step 2: Convert to fraction form
    306,088.20/459,132.30 = 231,438.60/x
  3. Step 3: Cross multiply
    306,088.20x = 459,132.30 × 231,438.60
  4. Step 4: Simplify right side
    306,088.20x = 106,260,936,726.78
  5. Step 5: Solve for x
    x = 106,260,936,726.78/306,088.20
  6. Step 6: Final answer
    x = 347,157.90

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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.