Home / 311,695.26-429,939.99-216,167.10

Finding the Fourth Proportional to 311,695.26, 429,939.99 and 216,167.10

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Solution

The fourth proportional to 311,695.26, 429,939.99 and 216,167.10 is: 298,172.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,695.26 : 429,939.99 = 216,167.10 : x
  2. Step 2: Convert to fraction form
    311,695.26/429,939.99 = 216,167.10/x
  3. Step 3: Cross multiply
    311,695.26x = 429,939.99 × 216,167.10
  4. Step 4: Simplify right side
    311,695.26x = 92,938,880,812.33
  5. Step 5: Solve for x
    x = 92,938,880,812.33/311,695.26
  6. Step 6: Final answer
    x = 298,172.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.