Home / 255,176.62-381,828.76-212,952.45

Finding the Fourth Proportional to 255,176.62, 381,828.76 and 212,952.45

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Solution

The fourth proportional to 255,176.62, 381,828.76 and 212,952.45 is: 318,647.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,176.62 : 381,828.76 = 212,952.45 : x
  2. Step 2: Convert to fraction form
    255,176.62/381,828.76 = 212,952.45/x
  3. Step 3: Cross multiply
    255,176.62x = 381,828.76 × 212,952.45
  4. Step 4: Simplify right side
    255,176.62x = 81,311,369,922.46
  5. Step 5: Solve for x
    x = 81,311,369,922.46/255,176.62
  6. Step 6: Final answer
    x = 318,647.41

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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.