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Finding the Fourth Proportional to 354,544, 531,820.63 and 117,886.68

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Solution

The fourth proportional to 354,544, 531,820.63 and 117,886.68 is: 176,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,544 : 531,820.63 = 117,886.68 : x
  2. Step 2: Convert to fraction form
    354,544/531,820.63 = 117,886.68/x
  3. Step 3: Cross multiply
    354,544x = 531,820.63 × 117,886.68
  4. Step 4: Simplify right side
    354,544x = 62,694,568,426.21
  5. Step 5: Solve for x
    x = 62,694,568,426.21/354,544
  6. Step 6: Final answer
    x = 176,831.56

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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.