Home / 208,913.22-288,306.86-118,267.54

Finding the Fourth Proportional to 208,913.22, 288,306.86 and 118,267.54

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Solution

The fourth proportional to 208,913.22, 288,306.86 and 118,267.54 is: 163,212.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,913.22 : 288,306.86 = 118,267.54 : x
  2. Step 2: Convert to fraction form
    208,913.22/288,306.86 = 118,267.54/x
  3. Step 3: Cross multiply
    208,913.22x = 288,306.86 × 118,267.54
  4. Step 4: Simplify right side
    208,913.22x = 34,097,341,785.22
  5. Step 5: Solve for x
    x = 34,097,341,785.22/208,913.22
  6. Step 6: Final answer
    x = 163,212.94

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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.