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Finding the Fourth Proportional to 371,404.98, 512,542.08 and 201,639.51

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Solution

The fourth proportional to 371,404.98, 512,542.08 and 201,639.51 is: 278,264.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,404.98 : 512,542.08 = 201,639.51 : x
  2. Step 2: Convert to fraction form
    371,404.98/512,542.08 = 201,639.51/x
  3. Step 3: Cross multiply
    371,404.98x = 512,542.08 × 201,639.51
  4. Step 4: Simplify right side
    371,404.98x = 103,348,733,865.58
  5. Step 5: Solve for x
    x = 103,348,733,865.58/371,404.98
  6. Step 6: Final answer
    x = 278,264.27

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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.