Home / 209,309.42-288,840.96-118,673.84

Finding the Fourth Proportional to 209,309.42, 288,840.96 and 118,673.84

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Solution

The fourth proportional to 209,309.42, 288,840.96 and 118,673.84 is: 163,766.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,309.42 : 288,840.96 = 118,673.84 : x
  2. Step 2: Convert to fraction form
    209,309.42/288,840.96 = 118,673.84/x
  3. Step 3: Cross multiply
    209,309.42x = 288,840.96 × 118,673.84
  4. Step 4: Simplify right side
    209,309.42x = 34,277,865,872.49
  5. Step 5: Solve for x
    x = 34,277,865,872.49/209,309.42
  6. Step 6: Final answer
    x = 163,766.47

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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.