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Finding the Fourth Proportional to 491,900.83, 737,212.15 and 221,830.63

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Solution

The fourth proportional to 491,900.83, 737,212.15 and 221,830.63 is: 332,457.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,900.83 : 737,212.15 = 221,830.63 : x
  2. Step 2: Convert to fraction form
    491,900.83/737,212.15 = 221,830.63/x
  3. Step 3: Cross multiply
    491,900.83x = 737,212.15 × 221,830.63
  4. Step 4: Simplify right side
    491,900.83x = 163,536,235,678.16
  5. Step 5: Solve for x
    x = 163,536,235,678.16/491,900.83
  6. Step 6: Final answer
    x = 332,457.73

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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.