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Finding the Fourth Proportional to 268,994.90, 371,214.07 and 154,277.97

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Solution

The fourth proportional to 268,994.90, 371,214.07 and 154,277.97 is: 212,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,994.90 : 371,214.07 = 154,277.97 : x
  2. Step 2: Convert to fraction form
    268,994.90/371,214.07 = 154,277.97/x
  3. Step 3: Cross multiply
    268,994.90x = 371,214.07 × 154,277.97
  4. Step 4: Simplify right side
    268,994.90x = 57,270,152,769.34
  5. Step 5: Solve for x
    x = 57,270,152,769.34/268,994.90
  6. Step 6: Final answer
    x = 212,904.24

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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.