Home / 208,227.84-312,026.40-137,855.04

Finding the Fourth Proportional to 208,227.84, 312,026.40 and 137,855.04

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Solution

The fourth proportional to 208,227.84, 312,026.40 and 137,855.04 is: 206,573.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,227.84 : 312,026.40 = 137,855.04 : x
  2. Step 2: Convert to fraction form
    208,227.84/312,026.40 = 137,855.04/x
  3. Step 3: Cross multiply
    208,227.84x = 312,026.40 × 137,855.04
  4. Step 4: Simplify right side
    208,227.84x = 43,014,411,853.06
  5. Step 5: Solve for x
    x = 43,014,411,853.06/208,227.84
  6. Step 6: Final answer
    x = 206,573.78

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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.