Home / 313,821.30-470,731.95-100,588.80

Finding the Fourth Proportional to 313,821.30, 470,731.95 and 100,588.80

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Solution

The fourth proportional to 313,821.30, 470,731.95 and 100,588.80 is: 150,883.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,821.30 : 470,731.95 = 100,588.80 : x
  2. Step 2: Convert to fraction form
    313,821.30/470,731.95 = 100,588.80/x
  3. Step 3: Cross multiply
    313,821.30x = 470,731.95 × 100,588.80
  4. Step 4: Simplify right side
    313,821.30x = 47,350,361,972.16
  5. Step 5: Solve for x
    x = 47,350,361,972.16/313,821.30
  6. Step 6: Final answer
    x = 150,883.20

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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.