Home / 314,912.40-472,426.20-127,942.80

Finding the Fourth Proportional to 314,912.40, 472,426.20 and 127,942.80

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Solution

The fourth proportional to 314,912.40, 472,426.20 and 127,942.80 is: 191,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,912.40 : 472,426.20 = 127,942.80 : x
  2. Step 2: Convert to fraction form
    314,912.40/472,426.20 = 127,942.80/x
  3. Step 3: Cross multiply
    314,912.40x = 472,426.20 × 127,942.80
  4. Step 4: Simplify right side
    314,912.40x = 60,443,530,821.36
  5. Step 5: Solve for x
    x = 60,443,530,821.36/314,912.40
  6. Step 6: Final answer
    x = 191,937.60

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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.