Home / 313,976.50-470,981.04-103,630.84

Finding the Fourth Proportional to 313,976.50, 470,981.04 and 103,630.84

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Solution

The fourth proportional to 313,976.50, 470,981.04 and 103,630.84 is: 155,451.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,976.50 : 470,981.04 = 103,630.84 : x
  2. Step 2: Convert to fraction form
    313,976.50/470,981.04 = 103,630.84/x
  3. Step 3: Cross multiply
    313,976.50x = 470,981.04 × 103,630.84
  4. Step 4: Simplify right side
    313,976.50x = 48,808,160,799.27
  5. Step 5: Solve for x
    x = 48,808,160,799.27/313,976.50
  6. Step 6: Final answer
    x = 155,451.64

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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.