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Finding the Fourth Proportional to 447,354.88, 617,146.28 and 265,963.90

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Solution

The fourth proportional to 447,354.88, 617,146.28 and 265,963.90 is: 366,909.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,354.88 : 617,146.28 = 265,963.90 : x
  2. Step 2: Convert to fraction form
    447,354.88/617,146.28 = 265,963.90/x
  3. Step 3: Cross multiply
    447,354.88x = 617,146.28 × 265,963.90
  4. Step 4: Simplify right side
    447,354.88x = 164,138,631,499.29
  5. Step 5: Solve for x
    x = 164,138,631,499.29/447,354.88
  6. Step 6: Final answer
    x = 366,909.22

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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.