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Finding the Fourth Proportional to 304,479.80, 420,271.98 and 177,211.96

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Solution

The fourth proportional to 304,479.80, 420,271.98 and 177,211.96 is: 244,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,479.80 : 420,271.98 = 177,211.96 : x
  2. Step 2: Convert to fraction form
    304,479.80/420,271.98 = 177,211.96/x
  3. Step 3: Cross multiply
    304,479.80x = 420,271.98 × 177,211.96
  4. Step 4: Simplify right side
    304,479.80x = 74,477,221,308.88
  5. Step 5: Solve for x
    x = 74,477,221,308.88/304,479.80
  6. Step 6: Final answer
    x = 244,604.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.