Home / 308,108.07-425,186.21-172,165.43

Finding the Fourth Proportional to 308,108.07, 425,186.21 and 172,165.43

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Solution

The fourth proportional to 308,108.07, 425,186.21 and 172,165.43 is: 237,586.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,108.07 : 425,186.21 = 172,165.43 : x
  2. Step 2: Convert to fraction form
    308,108.07/425,186.21 = 172,165.43/x
  3. Step 3: Cross multiply
    308,108.07x = 425,186.21 × 172,165.43
  4. Step 4: Simplify right side
    308,108.07x = 73,202,368,168.10
  5. Step 5: Solve for x
    x = 73,202,368,168.10/308,108.07
  6. Step 6: Final answer
    x = 237,586.66

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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.