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Finding the Fourth Proportional to 371,261.70, 512,341.40 and 201,495.82

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Solution

The fourth proportional to 371,261.70, 512,341.40 and 201,495.82 is: 278,064.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,261.70 : 512,341.40 = 201,495.82 : x
  2. Step 2: Convert to fraction form
    371,261.70/512,341.40 = 201,495.82/x
  3. Step 3: Cross multiply
    371,261.70x = 512,341.40 × 201,495.82
  4. Step 4: Simplify right side
    371,261.70x = 103,234,650,512.95
  5. Step 5: Solve for x
    x = 103,234,650,512.95/371,261.70
  6. Step 6: Final answer
    x = 278,064.37

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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.