Home / 307,987.03-461,900.31-130,402.63

Finding the Fourth Proportional to 307,987.03, 461,900.31 and 130,402.63

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Solution

The fourth proportional to 307,987.03, 461,900.31 and 130,402.63 is: 195,569.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,987.03 : 461,900.31 = 130,402.63 : x
  2. Step 2: Convert to fraction form
    307,987.03/461,900.31 = 130,402.63/x
  3. Step 3: Cross multiply
    307,987.03x = 461,900.31 × 130,402.63
  4. Step 4: Simplify right side
    307,987.03x = 60,233,015,221.82
  5. Step 5: Solve for x
    x = 60,233,015,221.82/307,987.03
  6. Step 6: Final answer
    x = 195,569.97

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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.