Home / 209,310.55-288,842.56-118,675.20

Finding the Fourth Proportional to 209,310.55, 288,842.56 and 118,675.20

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Solution

The fourth proportional to 209,310.55, 288,842.56 and 118,675.20 is: 163,768.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,310.55 : 288,842.56 = 118,675.20 : x
  2. Step 2: Convert to fraction form
    209,310.55/288,842.56 = 118,675.20/x
  3. Step 3: Cross multiply
    209,310.55x = 288,842.56 × 118,675.20
  4. Step 4: Simplify right side
    209,310.55x = 34,278,448,576.51
  5. Step 5: Solve for x
    x = 34,278,448,576.51/209,310.55
  6. Step 6: Final answer
    x = 163,768.37

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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.