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Finding the Fourth Proportional to 388,327.68, 582,495.36 and 107,846.40

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Solution

The fourth proportional to 388,327.68, 582,495.36 and 107,846.40 is: 161,770.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,327.68 : 582,495.36 = 107,846.40 : x
  2. Step 2: Convert to fraction form
    388,327.68/582,495.36 = 107,846.40/x
  3. Step 3: Cross multiply
    388,327.68x = 582,495.36 × 107,846.40
  4. Step 4: Simplify right side
    388,327.68x = 62,820,027,592.70
  5. Step 5: Solve for x
    x = 62,820,027,592.70/388,327.68
  6. Step 6: Final answer
    x = 161,770.67

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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.