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Finding the Fourth Proportional to 508,311.35, 762,245.54 and 171,289.18

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Solution

The fourth proportional to 508,311.35, 762,245.54 and 171,289.18 is: 256,859.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,311.35 : 762,245.54 = 171,289.18 : x
  2. Step 2: Convert to fraction form
    508,311.35/762,245.54 = 171,289.18/x
  3. Step 3: Cross multiply
    508,311.35x = 762,245.54 × 171,289.18
  4. Step 4: Simplify right side
    508,311.35x = 130,564,414,243.95
  5. Step 5: Solve for x
    x = 130,564,414,243.95/508,311.35
  6. Step 6: Final answer
    x = 256,859.14

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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.