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Finding the Fourth Proportional to 491,864.80, 737,158.08 and 221,794.60

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Solution

The fourth proportional to 491,864.80, 737,158.08 and 221,794.60 is: 332,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,864.80 : 737,158.08 = 221,794.60 : x
  2. Step 2: Convert to fraction form
    491,864.80/737,158.08 = 221,794.60/x
  3. Step 3: Cross multiply
    491,864.80x = 737,158.08 × 221,794.60
  4. Step 4: Simplify right side
    491,864.80x = 163,497,677,804.58
  5. Step 5: Solve for x
    x = 163,497,677,804.58/491,864.80
  6. Step 6: Final answer
    x = 332,403.70

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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.