Home / 313,982.70-471,002.85-103,621.10

Finding the Fourth Proportional to 313,982.70, 471,002.85 and 103,621.10

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Solution

The fourth proportional to 313,982.70, 471,002.85 and 103,621.10 is: 155,441.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,982.70 : 471,002.85 = 103,621.10 : x
  2. Step 2: Convert to fraction form
    313,982.70/471,002.85 = 103,621.10/x
  3. Step 3: Cross multiply
    313,982.70x = 471,002.85 × 103,621.10
  4. Step 4: Simplify right side
    313,982.70x = 48,805,833,420.14
  5. Step 5: Solve for x
    x = 48,805,833,420.14/313,982.70
  6. Step 6: Final answer
    x = 155,441.15

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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.