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Finding the Fourth Proportional to 306,420.60, 459,630.90 and 222,002.40

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Solution

The fourth proportional to 306,420.60, 459,630.90 and 222,002.40 is: 333,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,420.60 : 459,630.90 = 222,002.40 : x
  2. Step 2: Convert to fraction form
    306,420.60/459,630.90 = 222,002.40/x
  3. Step 3: Cross multiply
    306,420.60x = 459,630.90 × 222,002.40
  4. Step 4: Simplify right side
    306,420.60x = 102,039,162,914.16
  5. Step 5: Solve for x
    x = 102,039,162,914.16/306,420.60
  6. Step 6: Final answer
    x = 333,003.60

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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.