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Finding the Fourth Proportional to 480,861.36, 721,357.68 and 200,313

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Solution

The fourth proportional to 480,861.36, 721,357.68 and 200,313 is: 300,496.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,861.36 : 721,357.68 = 200,313 : x
  2. Step 2: Convert to fraction form
    480,861.36/721,357.68 = 200,313/x
  3. Step 3: Cross multiply
    480,861.36x = 721,357.68 × 200,313
  4. Step 4: Simplify right side
    480,861.36x = 144,497,320,953.84
  5. Step 5: Solve for x
    x = 144,497,320,953.84/480,861.36
  6. Step 6: Final answer
    x = 300,496.84

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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.