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Finding the Fourth Proportional to 235,924, 325,568.56 and 128,491.68

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Solution

The fourth proportional to 235,924, 325,568.56 and 128,491.68 is: 177,314.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,924 : 325,568.56 = 128,491.68 : x
  2. Step 2: Convert to fraction form
    235,924/325,568.56 = 128,491.68/x
  3. Step 3: Cross multiply
    235,924x = 325,568.56 × 128,491.68
  4. Step 4: Simplify right side
    235,924x = 41,832,851,229.58
  5. Step 5: Solve for x
    x = 41,832,851,229.58/235,924
  6. Step 6: Final answer
    x = 177,314.95

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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.