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Finding the Fourth Proportional to 340,286.77, 510,476.87 and 115,586.90

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Solution

The fourth proportional to 340,286.77, 510,476.87 and 115,586.90 is: 173,396.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,286.77 : 510,476.87 = 115,586.90 : x
  2. Step 2: Convert to fraction form
    340,286.77/510,476.87 = 115,586.90/x
  3. Step 3: Cross multiply
    340,286.77x = 510,476.87 × 115,586.90
  4. Step 4: Simplify right side
    340,286.77x = 59,004,438,925.00
  5. Step 5: Solve for x
    x = 59,004,438,925.00/340,286.77
  6. Step 6: Final answer
    x = 173,396.22

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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.