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Finding the Fourth Proportional to 371,557.88, 512,781.50 and 210,441.59

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Solution

The fourth proportional to 371,557.88, 512,781.50 and 210,441.59 is: 290,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,557.88 : 512,781.50 = 210,441.59 : x
  2. Step 2: Convert to fraction form
    371,557.88/512,781.50 = 210,441.59/x
  3. Step 3: Cross multiply
    371,557.88x = 512,781.50 × 210,441.59
  4. Step 4: Simplify right side
    371,557.88x = 107,910,553,204.47
  5. Step 5: Solve for x
    x = 107,910,553,204.47/371,557.88
  6. Step 6: Final answer
    x = 290,427.30

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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.