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Finding the Fourth Proportional to 510,492.39, 765,738.54 and 136,505.67

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Solution

The fourth proportional to 510,492.39, 765,738.54 and 136,505.67 is: 204,758.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,492.39 : 765,738.54 = 136,505.67 : x
  2. Step 2: Convert to fraction form
    510,492.39/765,738.54 = 136,505.67/x
  3. Step 3: Cross multiply
    510,492.39x = 765,738.54 × 136,505.67
  4. Step 4: Simplify right side
    510,492.39x = 104,527,652,447.52
  5. Step 5: Solve for x
    x = 104,527,652,447.52/510,492.39
  6. Step 6: Final answer
    x = 204,758.49

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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.