Home / 307,583.70-461,440.35-129,999.30

Finding the Fourth Proportional to 307,583.70, 461,440.35 and 129,999.30

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Solution

The fourth proportional to 307,583.70, 461,440.35 and 129,999.30 is: 195,026.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,583.70 : 461,440.35 = 129,999.30 : x
  2. Step 2: Convert to fraction form
    307,583.70/461,440.35 = 129,999.30/x
  3. Step 3: Cross multiply
    307,583.70x = 461,440.35 × 129,999.30
  4. Step 4: Simplify right side
    307,583.70x = 59,986,922,491.76
  5. Step 5: Solve for x
    x = 59,986,922,491.76/307,583.70
  6. Step 6: Final answer
    x = 195,026.34

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1.5x scale

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.