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Finding the Fourth Proportional to 377,639.88, 521,154.52 and 267,455.92

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Solution

The fourth proportional to 377,639.88, 521,154.52 and 267,455.92 is: 369,097.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,639.88 : 521,154.52 = 267,455.92 : x
  2. Step 2: Convert to fraction form
    377,639.88/521,154.52 = 267,455.92/x
  3. Step 3: Cross multiply
    377,639.88x = 521,154.52 × 267,455.92
  4. Step 4: Simplify right side
    377,639.88x = 139,385,862,555.83
  5. Step 5: Solve for x
    x = 139,385,862,555.83/377,639.88
  6. Step 6: Final answer
    x = 369,097.30

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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.