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Finding the Fourth Proportional to 376,560, 565,073.44 and 218,862.72

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Solution

The fourth proportional to 376,560, 565,073.44 and 218,862.72 is: 328,429.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,560 : 565,073.44 = 218,862.72 : x
  2. Step 2: Convert to fraction form
    376,560/565,073.44 = 218,862.72/x
  3. Step 3: Cross multiply
    376,560x = 565,073.44 × 218,862.72
  4. Step 4: Simplify right side
    376,560x = 123,673,510,078.16
  5. Step 5: Solve for x
    x = 123,673,510,078.16/376,560
  6. Step 6: Final answer
    x = 328,429.76

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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.