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Finding the Fourth Proportional to 304,750.20, 457,125.30 and 205,217.40

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Solution

The fourth proportional to 304,750.20, 457,125.30 and 205,217.40 is: 307,826.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,750.20 : 457,125.30 = 205,217.40 : x
  2. Step 2: Convert to fraction form
    304,750.20/457,125.30 = 205,217.40/x
  3. Step 3: Cross multiply
    304,750.20x = 457,125.30 × 205,217.40
  4. Step 4: Simplify right side
    304,750.20x = 93,810,065,540.22
  5. Step 5: Solve for x
    x = 93,810,065,540.22/304,750.20
  6. Step 6: Final answer
    x = 307,826.10

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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.