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Finding the Fourth Proportional to 539,187.92, 808,885.56 and 206,738

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Solution

The fourth proportional to 539,187.92, 808,885.56 and 206,738 is: 310,146.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,187.92 : 808,885.56 = 206,738 : x
  2. Step 2: Convert to fraction form
    539,187.92/808,885.56 = 206,738/x
  3. Step 3: Cross multiply
    539,187.92x = 808,885.56 × 206,738
  4. Step 4: Simplify right side
    539,187.92x = 167,227,382,903.28
  5. Step 5: Solve for x
    x = 167,227,382,903.28/539,187.92
  6. Step 6: Final answer
    x = 310,146.75

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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.