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Finding the Fourth Proportional to 356,736.32, 534,678 and 271,836.98

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Solution

The fourth proportional to 356,736.32, 534,678 and 271,836.98 is: 407,430.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,736.32 : 534,678 = 271,836.98 : x
  2. Step 2: Convert to fraction form
    356,736.32/534,678 = 271,836.98/x
  3. Step 3: Cross multiply
    356,736.32x = 534,678 × 271,836.98
  4. Step 4: Simplify right side
    356,736.32x = 145,345,252,792.44
  5. Step 5: Solve for x
    x = 145,345,252,792.44/356,736.32
  6. Step 6: Final answer
    x = 407,430.49

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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.