Home / 307,943.10-461,569.05-130,419.90

Finding the Fourth Proportional to 307,943.10, 461,569.05 and 130,419.90

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Solution

The fourth proportional to 307,943.10, 461,569.05 and 130,419.90 is: 195,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,943.10 : 461,569.05 = 130,419.90 : x
  2. Step 2: Convert to fraction form
    307,943.10/461,569.05 = 130,419.90/x
  3. Step 3: Cross multiply
    307,943.10x = 461,569.05 × 130,419.90
  4. Step 4: Simplify right side
    307,943.10x = 60,197,789,344.10
  5. Step 5: Solve for x
    x = 60,197,789,344.10/307,943.10
  6. Step 6: Final answer
    x = 195,483.48

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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.