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Finding the Fourth Proportional to 235,958.76, 325,625.93 and 128,529.67

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Solution

The fourth proportional to 235,958.76, 325,625.93 and 128,529.67 is: 177,372.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,958.76 : 325,625.93 = 128,529.67 : x
  2. Step 2: Convert to fraction form
    235,958.76/325,625.93 = 128,529.67/x
  3. Step 3: Cross multiply
    235,958.76x = 325,625.93 × 128,529.67
  4. Step 4: Simplify right side
    235,958.76x = 41,852,593,326.34
  5. Step 5: Solve for x
    x = 41,852,593,326.34/235,958.76
  6. Step 6: Final answer
    x = 177,372.49

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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.