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Finding the Fourth Proportional to 296,847.60, 445,271.40 and 218,115.60

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Solution

The fourth proportional to 296,847.60, 445,271.40 and 218,115.60 is: 327,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,847.60 : 445,271.40 = 218,115.60 : x
  2. Step 2: Convert to fraction form
    296,847.60/445,271.40 = 218,115.60/x
  3. Step 3: Cross multiply
    296,847.60x = 445,271.40 × 218,115.60
  4. Step 4: Simplify right side
    296,847.60x = 97,120,638,573.84
  5. Step 5: Solve for x
    x = 97,120,638,573.84/296,847.60
  6. Step 6: Final answer
    x = 327,173.40

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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.