Home / 313,972.40-470,872.20-127,002.80

Finding the Fourth Proportional to 313,972.40, 470,872.20 and 127,002.80

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Solution

The fourth proportional to 313,972.40, 470,872.20 and 127,002.80 is: 190,469.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,972.40 : 470,872.20 = 127,002.80 : x
  2. Step 2: Convert to fraction form
    313,972.40/470,872.20 = 127,002.80/x
  3. Step 3: Cross multiply
    313,972.40x = 470,872.20 × 127,002.80
  4. Step 4: Simplify right side
    313,972.40x = 59,802,087,842.16
  5. Step 5: Solve for x
    x = 59,802,087,842.16/313,972.40
  6. Step 6: Final answer
    x = 190,469.25

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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.