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Finding the Fourth Proportional to 371,034.25, 512,027.43 and 209,885.92

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Solution

The fourth proportional to 371,034.25, 512,027.43 and 209,885.92 is: 289,642.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,034.25 : 512,027.43 = 209,885.92 : x
  2. Step 2: Convert to fraction form
    371,034.25/512,027.43 = 209,885.92/x
  3. Step 3: Cross multiply
    371,034.25x = 512,027.43 × 209,885.92
  4. Step 4: Simplify right side
    371,034.25x = 107,467,348,210.79
  5. Step 5: Solve for x
    x = 107,467,348,210.79/371,034.25
  6. Step 6: Final answer
    x = 289,642.66

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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.