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Finding the Fourth Proportional to 304,276.80, 419,869.68 and 168,289.14

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Solution

The fourth proportional to 304,276.80, 419,869.68 and 168,289.14 is: 232,221.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,276.80 : 419,869.68 = 168,289.14 : x
  2. Step 2: Convert to fraction form
    304,276.80/419,869.68 = 168,289.14/x
  3. Step 3: Cross multiply
    304,276.80x = 419,869.68 × 168,289.14
  4. Step 4: Simplify right side
    304,276.80x = 70,659,507,359.28
  5. Step 5: Solve for x
    x = 70,659,507,359.28/304,276.80
  6. Step 6: Final answer
    x = 232,221.15

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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.