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Finding the Fourth Proportional to 304,665.60, 456,998.40 and 80,011.20

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Solution

The fourth proportional to 304,665.60, 456,998.40 and 80,011.20 is: 120,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,665.60 : 456,998.40 = 80,011.20 : x
  2. Step 2: Convert to fraction form
    304,665.60/456,998.40 = 80,011.20/x
  3. Step 3: Cross multiply
    304,665.60x = 456,998.40 × 80,011.20
  4. Step 4: Simplify right side
    304,665.60x = 36,564,990,382.08
  5. Step 5: Solve for x
    x = 36,564,990,382.08/304,665.60
  6. Step 6: Final answer
    x = 120,016.80

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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.