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Finding the Fourth Proportional to 309,737.70, 464,606.55 and 122,724.90

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Solution

The fourth proportional to 309,737.70, 464,606.55 and 122,724.90 is: 184,087.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,737.70 : 464,606.55 = 122,724.90 : x
  2. Step 2: Convert to fraction form
    309,737.70/464,606.55 = 122,724.90/x
  3. Step 3: Cross multiply
    309,737.70x = 464,606.55 × 122,724.90
  4. Step 4: Simplify right side
    309,737.70x = 57,018,792,388.10
  5. Step 5: Solve for x
    x = 57,018,792,388.10/309,737.70
  6. Step 6: Final answer
    x = 184,087.35

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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.