Home / 307,515.40-461,335.37-130,022.12

Finding the Fourth Proportional to 307,515.40, 461,335.37 and 130,022.12

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Solution

The fourth proportional to 307,515.40, 461,335.37 and 130,022.12 is: 195,059.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,515.40 : 461,335.37 = 130,022.12 : x
  2. Step 2: Convert to fraction form
    307,515.40/461,335.37 = 130,022.12/x
  3. Step 3: Cross multiply
    307,515.40x = 461,335.37 × 130,022.12
  4. Step 4: Simplify right side
    307,515.40x = 59,983,803,341.61
  5. Step 5: Solve for x
    x = 59,983,803,341.61/307,515.40
  6. Step 6: Final answer
    x = 195,059.51

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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.