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Finding the Fourth Proportional to 304,449.20, 420,308.80 and 183,620.96

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Solution

The fourth proportional to 304,449.20, 420,308.80 and 183,620.96 is: 253,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,449.20 : 420,308.80 = 183,620.96 : x
  2. Step 2: Convert to fraction form
    304,449.20/420,308.80 = 183,620.96/x
  3. Step 3: Cross multiply
    304,449.20x = 420,308.80 × 183,620.96
  4. Step 4: Simplify right side
    304,449.20x = 77,177,505,352.45
  5. Step 5: Solve for x
    x = 77,177,505,352.45/304,449.20
  6. Step 6: Final answer
    x = 253,498.80

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1.5x scale

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.