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Finding the Fourth Proportional to 235,532.75, 325,025.82 and 128,102.87

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Solution

The fourth proportional to 235,532.75, 325,025.82 and 128,102.87 is: 176,776.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,532.75 : 325,025.82 = 128,102.87 : x
  2. Step 2: Convert to fraction form
    235,532.75/325,025.82 = 128,102.87/x
  3. Step 3: Cross multiply
    235,532.75x = 325,025.82 × 128,102.87
  4. Step 4: Simplify right side
    235,532.75x = 41,636,741,178.67
  5. Step 5: Solve for x
    x = 41,636,741,178.67/235,532.75
  6. Step 6: Final answer
    x = 176,776.87

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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.