Home / 272,069.39-408,146.33-138,877.58

Finding the Fourth Proportional to 272,069.39, 408,146.33 and 138,877.58

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Solution

The fourth proportional to 272,069.39, 408,146.33 and 138,877.58 is: 208,337.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,069.39 : 408,146.33 = 138,877.58 : x
  2. Step 2: Convert to fraction form
    272,069.39/408,146.33 = 138,877.58/x
  3. Step 3: Cross multiply
    272,069.39x = 408,146.33 × 138,877.58
  4. Step 4: Simplify right side
    272,069.39x = 56,682,372,902.74
  5. Step 5: Solve for x
    x = 56,682,372,902.74/272,069.39
  6. Step 6: Final answer
    x = 208,337.93

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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.