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Finding the Fourth Proportional to 304,569.72, 455,860.98 and 275,470.20

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Solution

The fourth proportional to 304,569.72, 455,860.98 and 275,470.20 is: 412,306.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,569.72 : 455,860.98 = 275,470.20 : x
  2. Step 2: Convert to fraction form
    304,569.72/455,860.98 = 275,470.20/x
  3. Step 3: Cross multiply
    304,569.72x = 455,860.98 × 275,470.20
  4. Step 4: Simplify right side
    304,569.72x = 125,576,115,332.80
  5. Step 5: Solve for x
    x = 125,576,115,332.80/304,569.72
  6. Step 6: Final answer
    x = 412,306.63

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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.