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Finding the Fourth Proportional to 328,084.62, 492,110.52 and 128,441.59

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Solution

The fourth proportional to 328,084.62, 492,110.52 and 128,441.59 is: 192,655.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,084.62 : 492,110.52 = 128,441.59 : x
  2. Step 2: Convert to fraction form
    328,084.62/492,110.52 = 128,441.59/x
  3. Step 3: Cross multiply
    328,084.62x = 492,110.52 × 128,441.59
  4. Step 4: Simplify right side
    328,084.62x = 63,207,455,932.59
  5. Step 5: Solve for x
    x = 63,207,455,932.59/328,084.62
  6. Step 6: Final answer
    x = 192,655.96

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1.5x scale

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.