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Finding the Fourth Proportional to 306,019.62, 459,029.43 and 92,787.12

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Solution

The fourth proportional to 306,019.62, 459,029.43 and 92,787.12 is: 139,180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,019.62 : 459,029.43 = 92,787.12 : x
  2. Step 2: Convert to fraction form
    306,019.62/459,029.43 = 92,787.12/x
  3. Step 3: Cross multiply
    306,019.62x = 459,029.43 × 92,787.12
  4. Step 4: Simplify right side
    306,019.62x = 42,592,018,804.94
  5. Step 5: Solve for x
    x = 42,592,018,804.94/306,019.62
  6. Step 6: Final answer
    x = 139,180.68

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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.