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Finding the Fourth Proportional to 375,491.73, 518,179.74 and 203,411.46

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Solution

The fourth proportional to 375,491.73, 518,179.74 and 203,411.46 is: 280,708.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,491.73 : 518,179.74 = 203,411.46 : x
  2. Step 2: Convert to fraction form
    375,491.73/518,179.74 = 203,411.46/x
  3. Step 3: Cross multiply
    375,491.73x = 518,179.74 × 203,411.46
  4. Step 4: Simplify right side
    375,491.73x = 105,403,697,455.82
  5. Step 5: Solve for x
    x = 105,403,697,455.82/375,491.73
  6. Step 6: Final answer
    x = 280,708.44

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1.5x scale

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.