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Finding the Fourth Proportional to 356,165.64, 534,276.09 and 103,450.20

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Solution

The fourth proportional to 356,165.64, 534,276.09 and 103,450.20 is: 155,183.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,165.64 : 534,276.09 = 103,450.20 : x
  2. Step 2: Convert to fraction form
    356,165.64/534,276.09 = 103,450.20/x
  3. Step 3: Cross multiply
    356,165.64x = 534,276.09 × 103,450.20
  4. Step 4: Simplify right side
    356,165.64x = 55,270,968,365.72
  5. Step 5: Solve for x
    x = 55,270,968,365.72/356,165.64
  6. Step 6: Final answer
    x = 155,183.33

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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.