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Finding the Fourth Proportional to 376,367.68, 518,671.43 and 369,450.95

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Solution

The fourth proportional to 376,367.68, 518,671.43 and 369,450.95 is: 509,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,367.68 : 518,671.43 = 369,450.95 : x
  2. Step 2: Convert to fraction form
    376,367.68/518,671.43 = 369,450.95/x
  3. Step 3: Cross multiply
    376,367.68x = 518,671.43 × 369,450.95
  4. Step 4: Simplify right side
    376,367.68x = 191,623,652,551.36
  5. Step 5: Solve for x
    x = 191,623,652,551.36/376,367.68
  6. Step 6: Final answer
    x = 509,139.51

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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.