Home / 255,918.15-383,877.18-137,426.49

Finding the Fourth Proportional to 255,918.15, 383,877.18 and 137,426.49

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Solution

The fourth proportional to 255,918.15, 383,877.18 and 137,426.49 is: 206,139.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,918.15 : 383,877.18 = 137,426.49 : x
  2. Step 2: Convert to fraction form
    255,918.15/383,877.18 = 137,426.49/x
  3. Step 3: Cross multiply
    255,918.15x = 383,877.18 × 137,426.49
  4. Step 4: Simplify right side
    255,918.15x = 52,754,893,438.50
  5. Step 5: Solve for x
    x = 52,754,893,438.50/255,918.15
  6. Step 6: Final answer
    x = 206,139.71

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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.