Home / 288,005.78-432,382.91-221,493.04

Finding the Fourth Proportional to 288,005.78, 432,382.91 and 221,493.04

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Solution

The fourth proportional to 288,005.78, 432,382.91 and 221,493.04 is: 332,527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,005.78 : 432,382.91 = 221,493.04 : x
  2. Step 2: Convert to fraction form
    288,005.78/432,382.91 = 221,493.04/x
  3. Step 3: Cross multiply
    288,005.78x = 432,382.91 × 221,493.04
  4. Step 4: Simplify right side
    288,005.78x = 95,769,802,991.52
  5. Step 5: Solve for x
    x = 95,769,802,991.52/288,005.78
  6. Step 6: Final answer
    x = 332,527.36

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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.