Home / 208,831.73-288,186.09-113,338.47

Finding the Fourth Proportional to 208,831.73, 288,186.09 and 113,338.47

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Solution

The fourth proportional to 208,831.73, 288,186.09 and 113,338.47 is: 156,406.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,831.73 : 288,186.09 = 113,338.47 : x
  2. Step 2: Convert to fraction form
    208,831.73/288,186.09 = 113,338.47/x
  3. Step 3: Cross multiply
    208,831.73x = 288,186.09 × 113,338.47
  4. Step 4: Simplify right side
    208,831.73x = 32,662,570,515.88
  5. Step 5: Solve for x
    x = 32,662,570,515.88/208,831.73
  6. Step 6: Final answer
    x = 156,406.17

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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.