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Finding the Fourth Proportional to 510,057.81, 764,758.67 and 243,812.43

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Solution

The fourth proportional to 510,057.81, 764,758.67 and 243,812.43 is: 365,561.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,057.81 : 764,758.67 = 243,812.43 : x
  2. Step 2: Convert to fraction form
    510,057.81/764,758.67 = 243,812.43/x
  3. Step 3: Cross multiply
    510,057.81x = 764,758.67 × 243,812.43
  4. Step 4: Simplify right side
    510,057.81x = 186,457,668,477.21
  5. Step 5: Solve for x
    x = 186,457,668,477.21/510,057.81
  6. Step 6: Final answer
    x = 365,561.83

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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.