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Finding the Fourth Proportional to 330,055.60, 495,277.80 and 218,059.60

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Solution

The fourth proportional to 330,055.60, 495,277.80 and 218,059.60 is: 327,217.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,055.60 : 495,277.80 = 218,059.60 : x
  2. Step 2: Convert to fraction form
    330,055.60/495,277.80 = 218,059.60/x
  3. Step 3: Cross multiply
    330,055.60x = 495,277.80 × 218,059.60
  4. Step 4: Simplify right side
    330,055.60x = 108,000,078,956.88
  5. Step 5: Solve for x
    x = 108,000,078,956.88/330,055.60
  6. Step 6: Final answer
    x = 327,217.84

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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.