Home / 208,913.37-288,295.97-113,419.23

Finding the Fourth Proportional to 208,913.37, 288,295.97 and 113,419.23

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Solution

The fourth proportional to 208,913.37, 288,295.97 and 113,419.23 is: 156,516.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,913.37 : 288,295.97 = 113,419.23 : x
  2. Step 2: Convert to fraction form
    208,913.37/288,295.97 = 113,419.23/x
  3. Step 3: Cross multiply
    208,913.37x = 288,295.97 × 113,419.23
  4. Step 4: Simplify right side
    208,913.37x = 32,698,306,929.50
  5. Step 5: Solve for x
    x = 32,698,306,929.50/208,913.37
  6. Step 6: Final answer
    x = 156,516.10

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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.