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Finding the Fourth Proportional to 363,902.40, 545,853.60 and 221,601.60

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Solution

The fourth proportional to 363,902.40, 545,853.60 and 221,601.60 is: 332,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,902.40 : 545,853.60 = 221,601.60 : x
  2. Step 2: Convert to fraction form
    363,902.40/545,853.60 = 221,601.60/x
  3. Step 3: Cross multiply
    363,902.40x = 545,853.60 × 221,601.60
  4. Step 4: Simplify right side
    363,902.40x = 120,962,031,125.76
  5. Step 5: Solve for x
    x = 120,962,031,125.76/363,902.40
  6. Step 6: Final answer
    x = 332,402.40

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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.