Home / 209,399.90-288,906.68-118,748.75

Finding the Fourth Proportional to 209,399.90, 288,906.68 and 118,748.75

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Solution

The fourth proportional to 209,399.90, 288,906.68 and 118,748.75 is: 163,836.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,399.90 : 288,906.68 = 118,748.75 : x
  2. Step 2: Convert to fraction form
    209,399.90/288,906.68 = 118,748.75/x
  3. Step 3: Cross multiply
    209,399.90x = 288,906.68 × 118,748.75
  4. Step 4: Simplify right side
    209,399.90x = 34,307,305,968.99
  5. Step 5: Solve for x
    x = 34,307,305,968.99/209,399.90
  6. Step 6: Final answer
    x = 163,836.31

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1.5x scale

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.