Home / 288,320.10-432,917.55-221,835.30

Finding the Fourth Proportional to 288,320.10, 432,917.55 and 221,835.30

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Solution

The fourth proportional to 288,320.10, 432,917.55 and 221,835.30 is: 333,089.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,320.10 : 432,917.55 = 221,835.30 : x
  2. Step 2: Convert to fraction form
    288,320.10/432,917.55 = 221,835.30/x
  3. Step 3: Cross multiply
    288,320.10x = 432,917.55 × 221,835.30
  4. Step 4: Simplify right side
    288,320.10x = 96,036,394,579.52
  5. Step 5: Solve for x
    x = 96,036,394,579.52/288,320.10
  6. Step 6: Final answer
    x = 333,089.49

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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.