Home / 255,284.43-383,163.05-129,013.53

Finding the Fourth Proportional to 255,284.43, 383,163.05 and 129,013.53

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Solution

The fourth proportional to 255,284.43, 383,163.05 and 129,013.53 is: 193,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,284.43 : 383,163.05 = 129,013.53 : x
  2. Step 2: Convert to fraction form
    255,284.43/383,163.05 = 129,013.53/x
  3. Step 3: Cross multiply
    255,284.43x = 383,163.05 × 129,013.53
  4. Step 4: Simplify right side
    255,284.43x = 49,433,217,646.07
  5. Step 5: Solve for x
    x = 49,433,217,646.07/255,284.43
  6. Step 6: Final answer
    x = 193,639.77

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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.