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Finding the Fourth Proportional to 340,440.63, 510,728.24 and 100,558.71

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Solution

The fourth proportional to 340,440.63, 510,728.24 and 100,558.71 is: 150,857.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,440.63 : 510,728.24 = 100,558.71 : x
  2. Step 2: Convert to fraction form
    340,440.63/510,728.24 = 100,558.71/x
  3. Step 3: Cross multiply
    340,440.63x = 510,728.24 × 100,558.71
  4. Step 4: Simplify right side
    340,440.63x = 51,358,172,472.18
  5. Step 5: Solve for x
    x = 51,358,172,472.18/340,440.63
  6. Step 6: Final answer
    x = 150,857.94

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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.