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Finding the Fourth Proportional to 288,282.78, 432,200.07 and 186,866.73

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Solution

The fourth proportional to 288,282.78, 432,200.07 and 186,866.73 is: 280,154.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,282.78 : 432,200.07 = 186,866.73 : x
  2. Step 2: Convert to fraction form
    288,282.78/432,200.07 = 186,866.73/x
  3. Step 3: Cross multiply
    288,282.78x = 432,200.07 × 186,866.73
  4. Step 4: Simplify right side
    288,282.78x = 80,763,813,786.67
  5. Step 5: Solve for x
    x = 80,763,813,786.67/288,282.78
  6. Step 6: Final answer
    x = 280,154.83

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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.