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Finding the Fourth Proportional to 512,121.32, 767,936.08 and 242,024.68

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Solution

The fourth proportional to 512,121.32, 767,936.08 and 242,024.68 is: 362,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,121.32 : 767,936.08 = 242,024.68 : x
  2. Step 2: Convert to fraction form
    512,121.32/767,936.08 = 242,024.68/x
  3. Step 3: Cross multiply
    512,121.32x = 767,936.08 × 242,024.68
  4. Step 4: Simplify right side
    512,121.32x = 185,859,484,022.45
  5. Step 5: Solve for x
    x = 185,859,484,022.45/512,121.32
  6. Step 6: Final answer
    x = 362,920.81

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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.