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Finding the Fourth Proportional to 304,665.80, 456,998.70 and 272,006.60

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Solution

The fourth proportional to 304,665.80, 456,998.70 and 272,006.60 is: 408,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,665.80 : 456,998.70 = 272,006.60 : x
  2. Step 2: Convert to fraction form
    304,665.80/456,998.70 = 272,006.60/x
  3. Step 3: Cross multiply
    304,665.80x = 456,998.70 × 272,006.60
  4. Step 4: Simplify right side
    304,665.80x = 124,306,662,591.42
  5. Step 5: Solve for x
    x = 124,306,662,591.42/304,665.80
  6. Step 6: Final answer
    x = 408,009.90

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1.5x scale

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.