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Finding the Fourth Proportional to 508,912.48, 762,206 and 242,859.80

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Solution

The fourth proportional to 508,912.48, 762,206 and 242,859.80 is: 363,734.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,912.48 : 762,206 = 242,859.80 : x
  2. Step 2: Convert to fraction form
    508,912.48/762,206 = 242,859.80/x
  3. Step 3: Cross multiply
    508,912.48x = 762,206 × 242,859.80
  4. Step 4: Simplify right side
    508,912.48x = 185,109,196,718.80
  5. Step 5: Solve for x
    x = 185,109,196,718.80/508,912.48
  6. Step 6: Final answer
    x = 363,734.83

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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.