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Finding the Fourth Proportional to 209,361, 288,795.06 and 124,473

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Solution

The fourth proportional to 209,361, 288,795.06 and 124,473 is: 171,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,361 : 288,795.06 = 124,473 : x
  2. Step 2: Convert to fraction form
    209,361/288,795.06 = 124,473/x
  3. Step 3: Cross multiply
    209,361x = 288,795.06 × 124,473
  4. Step 4: Simplify right side
    209,361x = 35,947,187,503.38
  5. Step 5: Solve for x
    x = 35,947,187,503.38/209,361
  6. Step 6: Final answer
    x = 171,699.54

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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.