Home / 208,914.66-288,016.59-143,501.49

Finding the Fourth Proportional to 208,914.66, 288,016.59 and 143,501.49

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Solution

The fourth proportional to 208,914.66, 288,016.59 and 143,501.49 is: 197,835.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,914.66 : 288,016.59 = 143,501.49 : x
  2. Step 2: Convert to fraction form
    208,914.66/288,016.59 = 143,501.49/x
  3. Step 3: Cross multiply
    208,914.66x = 288,016.59 × 143,501.49
  4. Step 4: Simplify right side
    208,914.66x = 41,330,809,809.72
  5. Step 5: Solve for x
    x = 41,330,809,809.72/208,914.66
  6. Step 6: Final answer
    x = 197,835.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.