Home / 288,974.20-432,878.10-164,169.40

Finding the Fourth Proportional to 288,974.20, 432,878.10 and 164,169.40

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Solution

The fourth proportional to 288,974.20, 432,878.10 and 164,169.40 is: 245,922.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,974.20 : 432,878.10 = 164,169.40 : x
  2. Step 2: Convert to fraction form
    288,974.20/432,878.10 = 164,169.40/x
  3. Step 3: Cross multiply
    288,974.20x = 432,878.10 × 164,169.40
  4. Step 4: Simplify right side
    288,974.20x = 71,065,337,950.14
  5. Step 5: Solve for x
    x = 71,065,337,950.14/288,974.20
  6. Step 6: Final answer
    x = 245,922.78

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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.