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Finding the Fourth Proportional to 313,737.36, 470,601.93 and 77,082.09

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Solution

The fourth proportional to 313,737.36, 470,601.93 and 77,082.09 is: 115,622.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,737.36 : 470,601.93 = 77,082.09 : x
  2. Step 2: Convert to fraction form
    313,737.36/470,601.93 = 77,082.09/x
  3. Step 3: Cross multiply
    313,737.36x = 470,601.93 × 77,082.09
  4. Step 4: Simplify right side
    313,737.36x = 36,274,980,322.43
  5. Step 5: Solve for x
    x = 36,274,980,322.43/313,737.36
  6. Step 6: Final answer
    x = 115,622.13

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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.