Home / 209,342.34-313,938.27-72,528.48

Finding the Fourth Proportional to 209,342.34, 313,938.27 and 72,528.48

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Solution

The fourth proportional to 209,342.34, 313,938.27 and 72,528.48 is: 108,766.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,342.34 : 313,938.27 = 72,528.48 : x
  2. Step 2: Convert to fraction form
    209,342.34/313,938.27 = 72,528.48/x
  3. Step 3: Cross multiply
    209,342.34x = 313,938.27 × 72,528.48
  4. Step 4: Simplify right side
    209,342.34x = 22,769,465,536.93
  5. Step 5: Solve for x
    x = 22,769,465,536.93/209,342.34
  6. Step 6: Final answer
    x = 108,766.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.