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Finding the Fourth Proportional to 375,651.92, 518,415.72 and 224,719.76

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Solution

The fourth proportional to 375,651.92, 518,415.72 and 224,719.76 is: 310,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,651.92 : 518,415.72 = 224,719.76 : x
  2. Step 2: Convert to fraction form
    375,651.92/518,415.72 = 224,719.76/x
  3. Step 3: Cross multiply
    375,651.92x = 518,415.72 × 224,719.76
  4. Step 4: Simplify right side
    375,651.92x = 116,498,256,178.63
  5. Step 5: Solve for x
    x = 116,498,256,178.63/375,651.92
  6. Step 6: Final answer
    x = 310,122.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.