Home / 313,972.21-470,974.65-103,626.55

Finding the Fourth Proportional to 313,972.21, 470,974.65 and 103,626.55

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Solution

The fourth proportional to 313,972.21, 470,974.65 and 103,626.55 is: 155,445.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,972.21 : 470,974.65 = 103,626.55 : x
  2. Step 2: Convert to fraction form
    313,972.21/470,974.65 = 103,626.55/x
  3. Step 3: Cross multiply
    313,972.21x = 470,974.65 × 103,626.55
  4. Step 4: Simplify right side
    313,972.21x = 48,805,478,116.96
  5. Step 5: Solve for x
    x = 48,805,478,116.96/313,972.21
  6. Step 6: Final answer
    x = 155,445.22

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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.