Home / 208,971.29-288,383.81-118,324.86

Finding the Fourth Proportional to 208,971.29, 288,383.81 and 118,324.86

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Solution

The fourth proportional to 208,971.29, 288,383.81 and 118,324.86 is: 163,290.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,971.29 : 288,383.81 = 118,324.86 : x
  2. Step 2: Convert to fraction form
    208,971.29/288,383.81 = 118,324.86/x
  3. Step 3: Cross multiply
    208,971.29x = 288,383.81 × 118,324.86
  4. Step 4: Simplify right side
    208,971.29x = 34,122,973,352.89
  5. Step 5: Solve for x
    x = 34,122,973,352.89/208,971.29
  6. Step 6: Final answer
    x = 163,290.25

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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.