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Finding the Fourth Proportional to 325,288.59, 488,491.25 and 199,666.50

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Solution

The fourth proportional to 325,288.59, 488,491.25 and 199,666.50 is: 299,842.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,288.59 : 488,491.25 = 199,666.50 : x
  2. Step 2: Convert to fraction form
    325,288.59/488,491.25 = 199,666.50/x
  3. Step 3: Cross multiply
    325,288.59x = 488,491.25 × 199,666.50
  4. Step 4: Simplify right side
    325,288.59x = 97,535,337,169.79
  5. Step 5: Solve for x
    x = 97,535,337,169.79/325,288.59
  6. Step 6: Final answer
    x = 299,842.48

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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.