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Finding the Fourth Proportional to 379,361.10, 523,512.16 and 207,275.38

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Solution

The fourth proportional to 379,361.10, 523,512.16 and 207,275.38 is: 286,036.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,361.10 : 523,512.16 = 207,275.38 : x
  2. Step 2: Convert to fraction form
    379,361.10/523,512.16 = 207,275.38/x
  3. Step 3: Cross multiply
    379,361.10x = 523,512.16 × 207,275.38
  4. Step 4: Simplify right side
    379,361.10x = 108,511,181,898.62
  5. Step 5: Solve for x
    x = 108,511,181,898.62/379,361.10
  6. Step 6: Final answer
    x = 286,036.66

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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.