Home / 313,941.40-470,912.10-103,528.60

Finding the Fourth Proportional to 313,941.40, 470,912.10 and 103,528.60

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Solution

The fourth proportional to 313,941.40, 470,912.10 and 103,528.60 is: 155,292.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,941.40 : 470,912.10 = 103,528.60 : x
  2. Step 2: Convert to fraction form
    313,941.40/470,912.10 = 103,528.60/x
  3. Step 3: Cross multiply
    313,941.40x = 470,912.10 × 103,528.60
  4. Step 4: Simplify right side
    313,941.40x = 48,752,870,436.06
  5. Step 5: Solve for x
    x = 48,752,870,436.06/313,941.40
  6. Step 6: Final answer
    x = 155,292.90

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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.