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Finding the Fourth Proportional to 189,276.30, 283,914.45 and 155,450.70

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Solution

The fourth proportional to 189,276.30, 283,914.45 and 155,450.70 is: 233,176.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,276.30 : 283,914.45 = 155,450.70 : x
  2. Step 2: Convert to fraction form
    189,276.30/283,914.45 = 155,450.70/x
  3. Step 3: Cross multiply
    189,276.30x = 283,914.45 × 155,450.70
  4. Step 4: Simplify right side
    189,276.30x = 44,134,699,992.62
  5. Step 5: Solve for x
    x = 44,134,699,992.62/189,276.30
  6. Step 6: Final answer
    x = 233,176.05

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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.