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Finding the Fourth Proportional to 571,131.58, 855,796.12 and 210,806.49

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Solution

The fourth proportional to 571,131.58, 855,796.12 and 210,806.49 is: 315,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,131.58 : 855,796.12 = 210,806.49 : x
  2. Step 2: Convert to fraction form
    571,131.58/855,796.12 = 210,806.49/x
  3. Step 3: Cross multiply
    571,131.58x = 855,796.12 × 210,806.49
  4. Step 4: Simplify right side
    571,131.58x = 180,407,376,212.82
  5. Step 5: Solve for x
    x = 180,407,376,212.82/571,131.58
  6. Step 6: Final answer
    x = 315,877.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.