Home / 255,512.29-383,607.55-218,311.42

Finding the Fourth Proportional to 255,512.29, 383,607.55 and 218,311.42

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Solution

The fourth proportional to 255,512.29, 383,607.55 and 218,311.42 is: 327,756.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,512.29 : 383,607.55 = 218,311.42 : x
  2. Step 2: Convert to fraction form
    255,512.29/383,607.55 = 218,311.42/x
  3. Step 3: Cross multiply
    255,512.29x = 383,607.55 × 218,311.42
  4. Step 4: Simplify right side
    255,512.29x = 83,745,908,963.22
  5. Step 5: Solve for x
    x = 83,745,908,963.22/255,512.29
  6. Step 6: Final answer
    x = 327,756.87

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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.