Home / 289,136.20-433,121.10-164,331.40

Finding the Fourth Proportional to 289,136.20, 433,121.10 and 164,331.40

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Solution

The fourth proportional to 289,136.20, 433,121.10 and 164,331.40 is: 246,165.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,136.20 : 433,121.10 = 164,331.40 : x
  2. Step 2: Convert to fraction form
    289,136.20/433,121.10 = 164,331.40/x
  3. Step 3: Cross multiply
    289,136.20x = 433,121.10 × 164,331.40
  4. Step 4: Simplify right side
    289,136.20x = 71,175,396,732.54
  5. Step 5: Solve for x
    x = 71,175,396,732.54/289,136.20
  6. Step 6: Final answer
    x = 246,165.64

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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.