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Finding the Fourth Proportional to 245,406.62, 368,099.22 and 76,923.10

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Solution

The fourth proportional to 245,406.62, 368,099.22 and 76,923.10 is: 115,381.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,406.62 : 368,099.22 = 76,923.10 : x
  2. Step 2: Convert to fraction form
    245,406.62/368,099.22 = 76,923.10/x
  3. Step 3: Cross multiply
    245,406.62x = 368,099.22 × 76,923.10
  4. Step 4: Simplify right side
    245,406.62x = 28,315,333,109.98
  5. Step 5: Solve for x
    x = 28,315,333,109.98/245,406.62
  6. Step 6: Final answer
    x = 115,381.29

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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.