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Finding the Fourth Proportional to 373,431.60, 560,147.40 and 307,821.60

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Solution

The fourth proportional to 373,431.60, 560,147.40 and 307,821.60 is: 461,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,431.60 : 560,147.40 = 307,821.60 : x
  2. Step 2: Convert to fraction form
    373,431.60/560,147.40 = 307,821.60/x
  3. Step 3: Cross multiply
    373,431.60x = 560,147.40 × 307,821.60
  4. Step 4: Simplify right side
    373,431.60x = 172,425,468,903.84
  5. Step 5: Solve for x
    x = 172,425,468,903.84/373,431.60
  6. Step 6: Final answer
    x = 461,732.40

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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.