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Finding the Fourth Proportional to 463,876.97, 640,139.36 and 272,902.64

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Solution

The fourth proportional to 463,876.97, 640,139.36 and 272,902.64 is: 376,599.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,876.97 : 640,139.36 = 272,902.64 : x
  2. Step 2: Convert to fraction form
    463,876.97/640,139.36 = 272,902.64/x
  3. Step 3: Cross multiply
    463,876.97x = 640,139.36 × 272,902.64
  4. Step 4: Simplify right side
    463,876.97x = 174,695,716,746.70
  5. Step 5: Solve for x
    x = 174,695,716,746.70/463,876.97
  6. Step 6: Final answer
    x = 376,599.25

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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.