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Finding the Fourth Proportional to 378,096.51, 521,966.08 and 256,232.67

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Solution

The fourth proportional to 378,096.51, 521,966.08 and 256,232.67 is: 353,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,096.51 : 521,966.08 = 256,232.67 : x
  2. Step 2: Convert to fraction form
    378,096.51/521,966.08 = 256,232.67/x
  3. Step 3: Cross multiply
    378,096.51x = 521,966.08 × 256,232.67
  4. Step 4: Simplify right side
    378,096.51x = 133,744,759,249.44
  5. Step 5: Solve for x
    x = 133,744,759,249.44/378,096.51
  6. Step 6: Final answer
    x = 353,731.80

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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.