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Finding the Fourth Proportional to 509,527.64, 764,290.56 and 135,550.64

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Solution

The fourth proportional to 509,527.64, 764,290.56 and 135,550.64 is: 203,325.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,527.64 : 764,290.56 = 135,550.64 : x
  2. Step 2: Convert to fraction form
    509,527.64/764,290.56 = 135,550.64/x
  3. Step 3: Cross multiply
    509,527.64x = 764,290.56 × 135,550.64
  4. Step 4: Simplify right side
    509,527.64x = 103,600,074,553.96
  5. Step 5: Solve for x
    x = 103,600,074,553.96/509,527.64
  6. Step 6: Final answer
    x = 203,325.72

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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.