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Finding the Fourth Proportional to 249,343.88, 374,023.38 and 80,859.56

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Solution

The fourth proportional to 249,343.88, 374,023.38 and 80,859.56 is: 121,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,343.88 : 374,023.38 = 80,859.56 : x
  2. Step 2: Convert to fraction form
    249,343.88/374,023.38 = 80,859.56/x
  3. Step 3: Cross multiply
    249,343.88x = 374,023.38 × 80,859.56
  4. Step 4: Simplify right side
    249,343.88x = 30,243,365,936.51
  5. Step 5: Solve for x
    x = 30,243,365,936.51/249,343.88
  6. Step 6: Final answer
    x = 121,291.79

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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.