Home / 306,099.20-459,148.80-148,343.60

Finding the Fourth Proportional to 306,099.20, 459,148.80 and 148,343.60

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Solution

The fourth proportional to 306,099.20, 459,148.80 and 148,343.60 is: 222,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,099.20 : 459,148.80 = 148,343.60 : x
  2. Step 2: Convert to fraction form
    306,099.20/459,148.80 = 148,343.60/x
  3. Step 3: Cross multiply
    306,099.20x = 459,148.80 × 148,343.60
  4. Step 4: Simplify right side
    306,099.20x = 68,111,785,927.68
  5. Step 5: Solve for x
    x = 68,111,785,927.68/306,099.20
  6. Step 6: Final answer
    x = 222,515.40

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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.