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Finding the Fourth Proportional to 382,086.45, 573,094.53 and 129,338.07

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Solution

The fourth proportional to 382,086.45, 573,094.53 and 129,338.07 is: 193,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,086.45 : 573,094.53 = 129,338.07 : x
  2. Step 2: Convert to fraction form
    382,086.45/573,094.53 = 129,338.07/x
  3. Step 3: Cross multiply
    382,086.45x = 573,094.53 × 129,338.07
  4. Step 4: Simplify right side
    382,086.45x = 74,122,940,437.76
  5. Step 5: Solve for x
    x = 74,122,940,437.76/382,086.45
  6. Step 6: Final answer
    x = 193,995.21

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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.