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Finding the Fourth Proportional to 341,989.40, 512,983.56 and 92,671.40

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Solution

The fourth proportional to 341,989.40, 512,983.56 and 92,671.40 is: 139,006.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,989.40 : 512,983.56 = 92,671.40 : x
  2. Step 2: Convert to fraction form
    341,989.40/512,983.56 = 92,671.40/x
  3. Step 3: Cross multiply
    341,989.40x = 512,983.56 × 92,671.40
  4. Step 4: Simplify right side
    341,989.40x = 47,538,904,682.18
  5. Step 5: Solve for x
    x = 47,538,904,682.18/341,989.40
  6. Step 6: Final answer
    x = 139,006.95

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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.