Home / 432,972.90-649,474.20-133,451.10

Finding the Fourth Proportional to 432,972.90, 649,474.20 and 133,451.10

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Solution

The fourth proportional to 432,972.90, 649,474.20 and 133,451.10 is: 200,181.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,972.90 : 649,474.20 = 133,451.10 : x
  2. Step 2: Convert to fraction form
    432,972.90/649,474.20 = 133,451.10/x
  3. Step 3: Cross multiply
    432,972.90x = 649,474.20 × 133,451.10
  4. Step 4: Simplify right side
    432,972.90x = 86,673,046,411.62
  5. Step 5: Solve for x
    x = 86,673,046,411.62/432,972.90
  6. Step 6: Final answer
    x = 200,181.23

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1.5x scale

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.