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Finding the Fourth Proportional to 307,614.60, 461,421.90 and 130,062.60

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Solution

The fourth proportional to 307,614.60, 461,421.90 and 130,062.60 is: 195,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,614.60 : 461,421.90 = 130,062.60 : x
  2. Step 2: Convert to fraction form
    307,614.60/461,421.90 = 130,062.60/x
  3. Step 3: Cross multiply
    307,614.60x = 461,421.90 × 130,062.60
  4. Step 4: Simplify right side
    307,614.60x = 60,013,732,010.94
  5. Step 5: Solve for x
    x = 60,013,732,010.94/307,614.60
  6. Step 6: Final answer
    x = 195,093.90

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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.